Prototype and
Call of Duty 4 have just been made available for download on Impulse, which lets gamers immediately download and install the games they purchase. The coolest thing about Impulse is if you get a new machine you can just download the client again and reinstall all your games without a problem even years into the future.
Prototype is $49.99 and
Call of Duty 4 is $39.99 so if you're interested head on over to the Impulse
website and check them out.