Yup, I picked up Halo Wars yesterday, pretty fun in co-op. :) I recommend ya to try the demo if you haven't.
I might buy Crystal Defenders on live, the game came out in the arcade yesterday and after playing the demo I'm a bit hooked. Plus, I was a bit Final Fantasy Tactics Advance fan too. It'll be my first arcade game bought in a while....I've pretty much played out most of my arcade games I own.
Resident Evil 5 comes out tomorrow, but I prolly won't get it till next Friday.