Hehe, I still have my original Dungeon Keeper, as well as Syndicate Wars, first 2 games I ever bought with my own monies! But if GOG lists them I'll buy'em again, love the work GOG is doing!
*Edit* Ooooooooooh, I see we can expect Crusader: No remorse and Alpha Centauri in the near future as well, can't wait!