If anyone's looking to buy the original Call of Duty, gamestop has it for $15 with free shipping. Just follow the directions here.

EDIT: The link to gamestop from the slickdeals site wasn't working for me, so here is the link in case it doesn't work for you either.
http://www.gamestop.com/product.asp?product%5Fid=645313
You still need to follow the directions from the slick deals site though.