I felt the same way.  I bought a xbox 4 years ago and was under-whelmed.  I don't game hardly at all on my PC anymore and I wanted something to take advantage of my tv and give me something to do on the nights that I am off.  So far I am very satisfied with it, but then it's only been 1 day.
I refuse to buy anything Sony.  I know xbox is micro$oft but I had to pick the lesser of two evils.  Plus, the whole HD-DVD vs. Blu-Ray thing.  
PS-I had to go hand-to-hand with a Jerry lastnight.  Kinda freaked me out.  I found myself yelling back at him, "I'm a juden!  A juden, mother****er!!!" and smacked him across in the jaw with the butt of my M1 Garand, blood went everywhere.  It was teh kewl.