It hasn't been officially posted yet, but I can't contain my excitement if this is true: 
 
http://www.gameguru.in/xbox-live/2010/07/xbox-live-marketplace-to-include-peggle-duke-nukem-3d-and-more-this-week/  
 
$5 is a great deal for Peggle Deluxe and I've been debating whether to get Worms 2: Armageddon for a while now. $10 might be the right price for me to grab CoD as well. 
 
BF1943 is a super-solid game as well, if you don't already have it.