I beat Gears of War last night (on casual though..), so right now I'm playing it on Hardcore, and after that, I'll play it on Insane. Gears of War seemed really short. Well, there's gonna be a 2nd one (due to the ending, you can tell there will be) I'm really addicted to Gears, can't stop playing and all.
Anyways, I'm going to continue my game on hardcore.