If you missed some of the classic PC games of yesteryear, or if you have even tried to reinstall them on your new Vista box only to be thwarted by incompatability, well then I have the site for you… Good Old Games
Good Old Games has a growing catalogue of classic PC games guarenteed to work on XP and Vista.
There are some great classics on there including the Fallout series and the early Unreal titles, and they are all DRM free and come with support. At less than $10 or about