I definitely like the controller of the PS3 better, it feels really chintzy and the batteries aren't replaceable but I'm significantly better with it. I almost never use a Playstation but I can pick up the controller and be at least decent at whatever game I am playing, the XBox controller takes more getting used to and I still don't like it. How is Forza compared to GT? I think Forza is fairly good on the realism, not perfect but good.
The $100 for the wireless LAN is bullsh!t, I agree. I have been wanting to move my XBox since I bought the thing but I am tethered to my router because I'm not forking over that kind of money for the wireless.
360 and PS3 players should definitely be able to play together! At very least to keep games alive longer because there are always a few people looking to go multiplayer with games that aren't the latest and hottest. I don't think PC players and console players should be able to play together, I don't want to hear all the console kiddies bitching because people with a keyboard and mouse are owning them