GameSpot is giving away beta keys for the C&C 4 beta, go here to sign up and enter the beta. If you don't have a GameSpot account (I didn't ), you can just make a new one and then sign up. I have no idea how long this beta is, but hopefully it continues through January since I don't have much time right now. Let's see how EA does with this one (though, seeing as this is beta, I'm sure there will be a ton of balance issues).
Updated! QOTW: "My eyes are open! Reality exists!" ~ Eric
Fact of the 'Longer Than Intended Time Period':
My old FotLTITP "Adam Savage of the mythbusters' first kiss was a direct result of playing D&D" is now a direct quote from Adam Savage.