NES Top Loader (minus controllers) - Free. An old coworker liked the NES front-loader so much that he traded his Top Loader to me for it!

Fox Hunt (PS1) - $5.99 at Gamestop, complete and in mint condition

Sega Master System, with 3 controllers and 2 light guns and about 40 CIB games (including Phantasy Star) for $30 at a local game store