Atari 2600
Nintendo SNES (European)
Sega Megadrive (Genesis)
not planning to buy any of the so called "next-gen console"...i love graphics and in my opinion they are all (PS3/X360/Wii) just too much underpowerd to stand even the test of a couple of seasons: they already seem old compared to what is expected in the PC game market in the next 12 months.
After a price drop i could consider the X360 for its "media extender" capabilities though(but only if in the mean time MS unlocks via SW/firmware upgrades the support for some more codecs)