Beat Halo 2 yesterday, that campaign was better than I remembered it to be. However, it begins to drag after Delta Halo, but other than that and the end it was solid. I'm going to play Halo 3 campaign today, gonna skip over Cortana though, and maybe play a game or two of gears.
I got a slim. I had one Xbox red ring on me after 4 years. SO I was out of warranty, just bought the slim and it works like a dream. Microsoft is finally learning how to make a solid piece of hardware.