Here goes for me:
Amiga
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Amiga 500(4) (NTSC, Stock)
Amiga 600(1) (PAL, Stock)
Amiga 1000(1) (NTSC, Stock)
Amiga 1200(1) (PAL, Blizzard 603e+ 040@25MHz/PPC@160MHz) (Soon an NTSC 1200 thanks to matt3k!)
Amiga 2000(2) (1 Stock, 1 68030, GVP EGS, Supra 8MB Memory Card with 4MB on board)
Amiga 2500(1) (NTSC, Stock)
Amiga 4000D/030(1) (NTSC, Stock, Probably the nicest system I have. It looks physically perfect.)
Amiga 4000T(1) (NTSC, Cyberstorm MKII 060, Picasso II, XSurf, Toaster 4000)
Commodore
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C64(2) (I don't know much about these machine. I was given these. I have a User Group meeting tomorrow where I hope to learn more!)
Atari
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520ST(1) (Stock, SC1224 Monitor)
800XL(1) (Stock, The only original computer I have left from my youth. I had a 400 before this, but lost it over the years.)
Sinclair
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1000(1)
ZX81(1)
Apple
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eMac(2) (1 working for MorphOS, 1 for parts)
Intel
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i7 Desktop(1) (i7@3.9Ghz, 2 nVidia GTX570 in SLI, 6GB RAM, 2TB, Corsair 800D Case, Corsair Vengeance K90 Keyboard and M60 Mouse, SB Titanium HD, Logitech Z5500 5.1 Speakers)
VMware 5.0 Server(1) (Core Quad@2.8Ghz, 8GB RAM, Flash Drive)
NAS Server(1) (FreeNAS 8.2, Pentium D 3.2Ghz, 4GB Ram, 6TB usable space)
MSI GT780DXR(1) (Core i7 Quad Core, 16GB RAM, 1080P nVidia 570M, Dynaudio Speakers, 1.5TB, steelseries keyboard)
Sony VPCF115FM(1) (Core i7, 1080P nVidia 330M, 6GB RAM)
I need a new room to put more stuff in.