Here are the instruments I own.

Keyboard Synthesizers
Hammond XK-3 Hammond XK-3
One of the best Hammond B3 clones
Novation Impulse
USB Controller – used as second manual for Hammond XK-3. It has waterfall keys!
Korg DS-8 Korg DS-8
8 voice multitimbral 4-operator FM synthesizer with velocity and aftertouch
Korg Krome 88  Korg Krome 88
Korg Modwave Korg Modwave
Korg OpSix Korg OpSix
6 operator FM synthesizer
Korg Poly-800 Reverse Keys Korg Poly-800, reverse keys
8 voice, 2 oscillator analog synthesizer
Korg Triton Korg Triton Classic
+ 32mb RAM, SCSI, 1 bad key, failed floppy drive
ROMpler with a ton of sample-based sounds and 2 arpeggiators
Korg Wavestate Korg WaveState
Wave Sequencing synthesizer
Kurzweil K2500XS Kurzweil K2500XS
+ 128MB RAM, PRAM, 2gb SCSI hard drive, KDFX, Piano board, Contemporary ROM, Orchestral ROM,
SCSI CD-ROM, SCSI CF reader
Kurzweil PC3K8 Kurzweil PC3K8
M-Audio Venom M-Audio Venom
Virtual Analog synthesizer
Novation X-Station 61 Novation X-Station 61
Virtual Analog synthesizer
Roland A-01 + Roland K-25m
Roland D-05+K25m Roland D-05 + Roland K-25m
Basically a Roland D-50 in a tiny chassis
Roland Fantom X8 Roland Fantom X8
+ 32MB RAM, SRX-05 Supreme Dance, SRX-07 Ultimate Keys, SRX-08 Platinum Trax, SRX-09 World Collection + 29 compact flash cards w/ patches
Roland JP-08 + Roland K-25m
Basically a 4-voice Jupiter 8
Roland JU-06 + Roland K-25m
Basically a 4 voice Juno 6
Roland JX-03 + Roland K-25m
Basically a 4 voice JX-3P
Roland SH-01A + Roland K-25m
Basically a modern SH-101
Roland System-1 Roland System-1
Virtual Analog synthesizer with plug-outs
Roland TB-03 + Roland K-25m
A Roland TB-303 with a keyboard
Roland VP-03 + Roland K-25m
Vocoder and String synthesizer
Roland V-Synth
+ VC-1 D-50 card, 5 compact flash cards
StudioLogic Sledge Black Studiologic Sledge Black
Wavetable synthesizer
Yamaha MOXF8 Yamaha MOXF8
+ 1gb flash storage
ROMpler with a ton of sounds and arpeggiations

 

Guitars
Donner Telecaster Donner Telecaster
Epiphone Les Paul Custom Epiphone Les Paul Ultra III Custom Limited Edition
6 string electric guitar
with embedded tuner
Music Man Bongo 6 String Bass Music Man Bongo (knockoff)
6 string electric bass guitar
with roundwound strings
Fender American Standard Stratocaster Fender American Standard Stratocaster
6 string electric guitar
with custom pickguard
Pawnshop Les Paul Kay Les Paul
6 string electric guitar
w/ handwound pickups from Harden Engineering
Ibanez Artcore AFS75T Ibanez Artcore AFS75T
Hollowbody 6 string electric guitar
Ibanez Expressionist 4 String Bass Ibanez Expressionist
4 string bass w/ flatwound strings
Ibanez SRV 5 String Bass Ibanez SRV405
5 string bass w/ flatwound strings
Ovation Applause Bass Ovation Applause
Acoustic/Electric 4 string bass guitar
Ovation Celebrity Ovation Custom Balladeer
Acoustic/Electric 6 string guitar

 

Additional Instruments
Access Virus B Access Virus B
Virtual Analog synthesizer
Alesis QSR
+ Vintage Keyboards , Vintage Synthesizers Q Cards
ROMpler
Alesis S4 Plus Alesis S4 Plus
ROMpler
Emu ProFormance 1 Plus Emu ProFormance 1+
Piano module with additional instruments
ROMpler
Emu e5000 Ultra Emu e5000 Ultra
+ 64mb RAM, CF reader, 128gb CF card, SCSI CD-ROM drive
Sampler
Emu Proteus 2500 Emu Proteus 2500
+ Composer ROM, Planet Phatt ROM
ROMpler with 4 slots for expansion ROMs
Kawai K1R Kawai K1R
ROMpler
Kawai K1R II
ROMpler
Korg 03R/W Korg 03R/W
+ 01/W Dance ROM card
ROMpler
Korg 05R/W Korg 05R/W
ROMpler
Korg M3 Desktop Expanded
ROMpler with sample playback and KARMA v2 + drum tracks
Korg M3R Korg M3R
Baby M1 ROMpler
MS2000R Korg MS2000R
4 voice Virtual Analog synthesizer
Korg NS5R Korg NS5R
ROMpler
Korg NX5R
Like the NS5R ROMpler, but includes a Yamaha XG expansion board
Korg TR Rack Korg TR-Rack
ROMpler
Korg Triton Rack
+ 96MB RAM + EXB-01 Piano / Classic Keyboards, EXB-02 Studio Essential, EXB-03 Future Loop Construction Set, EXB-04 Dance Extreme, EXB-05 Vintage Archives, EXB-06+EXB-07 Orchestral Collection, EXB-09 Trance Attack. 
ROMpler
Korg Wavestation SR
+ MCR-03 x2, MCR-02 x2
Wave Sequencing synthesizer
Korg Volca Bass Korg Volca Bass
desktop bass synthesizer
Korg Volca Beats Korg Volca Beats
desktop drum synthesizer
Korg Volca Drum Korg Volca Drum
desktop drum synthesizer
Korg Volca FM Korg Volca FM
3 voice desktop DX7 6-operator FM synthesizer
Korg Volca Keys Korg Volca Keys
desktop synthesizer
Korg Volca Kick Korg Volca Kick
desktop drum synthesizer
Korg Volca Sample Korg Volca Sample
desktop sample playback synthesizer
Korg X3R Korg X3R
ROMpler
Kurzweil K2000RS
+ 64MB RAM, PRAM, SCSI CF reader, Contemporary ROM, Orchestral ROM
Sampler with all the ROMs
Kurzweil K2500RS
+ 128MB RAM, PRAM, SCSI CF reader, Piano board, Contemporary ROM, Orchestral ROM
Sampler with all the ROMs
Kurzweil K2600RS Kurzweil K2600RS
+ 128MB RAM, PRAM, SCSI SD reader, Contemporary ROM, Orchestral ROM
Sampler with most of the ROMs
Make Noise 0 Coast Make Noise No Coast
desktop monophonic synthesizer
Roland D-110 Roland D-110
ROMpler
Roland Fantom XR Roland Fantom XR
ROMpler with sample playback
Roland JV-880
ROMpler
Roland JV-1010 Roland JV-1010
ROMpler
Roland JV-1080 Roland JV-1080
ROMpler
Roland JV-2080 Roland JV-2080
+ SR-JV80-01 Pop, SR-JV80-02 Orchestral, SR-JV80-05 World, SR-JV80-09 Session,
SR-JV80-10 Bass & Drum, SR-JV80-11 TechnoSR-JV80-12 Hip Hop
ROMpler
Roland MC-303 Roland MC-303
Groovebox with TB-303 sounds
Roland U110 Roland U-110
My least-favorite ROMpler of all time.
Nearly indecipherable operating system.
Roland U-220 Roland U-220
My second-to-least-favorite ROMpler of all time.
Roland learned NOTHING from the failures of the U-110
Roland JV-2020 Roland XV-2020
ROMpler
Roland XV-5050 Roland XV-5050
ROMpler
Yamaha Motif Rack ES Yamaha Motif ES Rack
ROMpler
Yamaha TG55
ROMpler
Yamaha TG500 Yamaha TG500
ROMpler
Yamaha TX81Z
4-op FM synthesizer with 8 waveforms (not limited to Sine waves)

 

Drum Machines
Akai XR20
Alesis SR-16
Boss DR-770
Boss DR-880 Boss DR-880
Roland D2 Roland D2
Roland TR-8

 

Modular Synthesizers
Blue Row Blue Row
Moog Mother-32
+ 4MS Shuffling Clock Divider + Breakout
+ 2HP Turing Module
+ Tiptop Audio Mix-Z
Red Row Red Row
Behringer Neutron
Black Row Black Row
Roland System-1M
Green Row Green Row
ALM Pamela’s Workout Programmable Clock Source
+ Behringer Model D
+ CFM BiPolar Half-Wave Rectifier
+ Qu-Bit Electronix Nano Rand
Lavender Row Lavender Row
MakeNoise DPO
+ MakeNoise Maths
+ Expert Sleepers Disting mk 3
+ TipTop Audio Z8000 Mk1 Sequencer
+ STG Audio .Mix
Silver Row Silver Row
4MS QCD
+TipTop Audio Z3000 Smart VCO Mk2
+ BubbleSound Instruments VCA4p
+ Intellijel Quadra
+ 4MS QPLFO
+ EMW VCF-SP (Steiner-Parker)
+ 2HP Comb
+ 2HP Mix
+ Mutable Instruments Clouds w/ Parasites
Yellow Row Yellow Row
2HP Seq
+ Pittsburgh Modular Generator X
+ Pittsburgh Modular Chain Reactor
+ EricaSynths Pico Dual Linear VCA
+ Synthrotek ADSR
+ Batumi 1974 Quadruple LFO
+ EricaSynths Pico VCF1 Polivoks Filter
+ Doepfer A-106-5 SEM Filter
+ Doepfer A-124 VCF5 Wasp Filter
+ Harvestman Malgorithm
+ Antimatter Audio Sub Ring
White Row White Row
2HP Clock
+ 4MS Rotating Clock Divider
+ 4MS RCD Expander
+ 4MS Shuffling Clock Divider
+ 4MS Shuffling Clock Expander
+ Intellijel MicroVCA
+ Waldorf NW-1 Wavetable Oscillator
+ 2Hp ADSR
+ Intellijel Korgasmatron II
+ 2HP Freeze
Orange Row
Behringer K-2
Teal Row
Behringer Pro-1
Behringer CAT Tan Row
Behringer CAT
Behringer Wasp Deluxe Purple Row
Behringer Wasp Deluxe