I found Abandonia.com, the home of "abandonware."
I originally went there for RockStar (remember that one?) but wandered a bit and found many things that my crossover to Apple had made unavailable to me. Civ 2, Sim City, Day of the Tentacle, Lemmings, The Incredible Machine, Arkanoid, Roger Wilco, Leisure Suit Larry, Callahans Crosstime Saloon, Hitchhikers Guide, and Princess Maker, which I've ALWAYS wanted to try. All free, as well.
If you're looking for some retro fun or there are some old games that you never got around to trying or just want to find interesting games you may not have found floating about on download.com, I suggest you pop on by ^_^