I was i sortof the same situation.
I had a gaming pc, and a wii. But i wanted something else, i prefer some types of games on PC and some on console, and whil ei still like my wii, I was missing out on a lot of good games, cause everything worth playing on 360/ps3 is either not released, or released as a crappy port on the wii.
I got myself a PS3, i chose PS3 over 360 because i have several friends with PS3s, and i don't know anyone with a 360, so i would be able to borrow games from my friends and play online with them.
This is worth taking into consideration when chosing a console.
