Now shipping from most places. ID Software's Doom 3 is released today, August 3rd. Oh, and upgrade your computer because you'll need it. AnandTech has their Doom 3 guide up!
MicroCenter - Doom 3 Game $47 in-store coupon only CircuitCity.com - Doom 3 Game $45 shipped on Friday
BestBuy - Doom 3 Game = $55 shipped