This is what I can come up with:
[homecomputers]
Amiga - Check my signature ;-)
ATARI 520STfm
ATARI 1040STfm
ATARI Jaguar (not working anymore, PSU blight :-()
ATARI STe (upgraded to 4MB RAM)
Panasonic FS-A1GT (MSX turbo R)
Panasonic FS-A1ST (MSX turbo R) - upgraded to 512KB RAM
Philips VG8020 (MSX) - where it all went wrong ;-)
Philips NMS8235 (MSX2) - upgraded to 256KB RAM, fast diskrom and doublesided drive
Philips NMS8245 (MSX2)
Philips NMS8250 (MSX2)
Philips NMS8280 (MSX2)
Sony HB-75P (MSX)
[consoles]
GamePark GP2X
GamePark GP32
SEGA Dreamcast
SEGA MegaDrive (old model)
Nintendo GameBoy (1989 model) - my first console
Nintendo GameBoy Advance
Nintendo GameCube
Nintendo DS
Nintendo NES
Nintendo Super Famicom Jr.
Nintendo Super NES
SNK Neo-Geo AES (Japan version)
Sony PlayStation (first PAL model, with all the connectors at the back - still working, apart from the CD unit)
Sony PlayStation 2
Sony PlayStation Portable
Sony PSOne
Sony PSTwo (Asia version)
[bricks]
Compaq Armada 1750
Promedion D410P
[missing in action]
ATARI 2600
Commodore 128 - sold due to lack of space
Philips Videopac G7000 - fried :-(
NOTE1: The amount of Philips machines could be explained by the fact that I live in The Netherlands
NOTE2: my dad seems to have caught the disorder as well, since he's cramming the rest of the family house with HIS computers ;-)
