i do lots of music using programs like ableton live and reason. i play world of warcraft. would like to be able to play a few higher end pc games. was looking at the 2.2 ghz pro. its the cheapest and i want to make sure it will be adequate for the aforementioned things. is the 2.4 ghz that much better? thanks in advance. and sry, i know these posts are probably a dime a dozen.