Atari 7800 (I remember having Pete Rose Baseball for it
Nintendo (Who didn't?)
Playstation (The original)
N64 (Goldeneye and Mario Kart
Sega Dreamcast (I used to love playing NBA 2K1)
That sums up my list. I remember playing Intellivision and Colecovision at my friends house. Another friend had an Atari Lynx and TurboGrafx 16. My roommate in college sophomore year had an Atari Jaguar that we'd bust out every now and then.
Oh and I can't forget the old school games on Commodore and Apple. Jumpman Junior, Spy Hunter, Oregon Trail, Carmen Sandiego.