Sega Genesis (original model)
Sega Genesis (Model - 1)(2)
Sega Nomad
Sega CD (two) w/ box and manual
Sega 32X
Sega Game Gear (2, the buttons stopped working on one)
Sega Saturn (Model 1 - May 1995)
Sega Saturn (Model 2 - August 1996)
Import Japanese Sega Saturn (white)
Sega Dreamcast w/ box and manual (2, one about to get custom-painted silver and black)
Nintendo Entertainment System
Super Nintendo Entertainment System
Super Nintendo Entertainment System (Model 2) w/ box and manual
Nintendo 64
Virtual Boy w/ box and manual
Sony Playstation (original 7800 series) w/ box and manual
Playstation 2 w/ box and manual
Atari 7800
Atari Lynx (original model)
Atari Jaguar
Jaguar CD w/ box and manual
Game.com w/ box and manual
Gameboy (original gray model)
Gameboy Advance w/ box and manual
Commodore 64
Neo Geo Pocket Color (navy camouflage *sigh*)
Microsoft Xbox w/ box and manual
Samsung GX TV

Oh and by the way, I still own ALL of these systems.