Just posting incase anyone hasn't heard of it yet.
http://www.gog.com/en/frontpage/
From the site:
http://www.gog.com/en/frontpage/
From the site:
GOG.com offers you critically acclaimed games from major publishers in every genre. Don’t let your kids mock the graphics; remind them that the classics never go out of style, unlike their totally wicked haircut.
For less than the cost of a lunch at some lousy diner you can own some of the greatest games of all time. No matter how big the file is and how successful the game was, you’ll leave the table satisfied that you got a great deal for your money. As an added bonus, our house specialities won’t make you sick.
Don't let your DRMs turn into nightmares (clever, no?). You won't find any intrusive copy protection in our games; we hate draconian DRM schemes just as much as you do, so at GOG.com you don't just buy the game, you actually own it. Once you download a game, you can install it on any PC and re-download it whenever you want, as many times as you need, and you can play it without an internet connection.
Thanks to our handsome programming team, the classics are now Windows Vista and Windows XP compatible. Now you can use your lightning-fast PC to unleash the full potential of those games you just couldn’t play properly on that busted old 386.
Buying the game is just the beginning. With the purchase of any game at GOG.com you'll also get some great additional materials for free, including game guides, walkthroughs, MP3 game soundtracks, wallpapers and more. No joke.