I cant wait!!. Going to pick up the MS Wireless adapter tomorrow and i cant wait to play online and start downloading stuff!! I'm looking forward to playing Gears, PGR, and COD3 online. what do I do, just plug in my adapter and thats it? Is it straightforward?
You have to type in some security stuff like WEP key (found on back/bottom of router) but mainly it's plug and play (gold live account is also needed for playing online) .
One thing your going to have to think about is your Live profile name. The one you've been using offline may already be registered by someone else so have a few ready if you change the name (I don't think it effects the saves/achievments).
It's better to have a think now so you don't end up with "Halodude2456" because you are so desperate to get online.