ROFLROFL..
You need a Penryn V8 to do all that.
8 Cores, where
core 0 does word
Core 1 does excel
core 2 does Itunes
Core 3 does encoding/recording
core 4 does Norton Anti virus
Core 5 does Bit torrent
Core 6 does TV
Core 7 does Windows base files
ALL at the same time.
J/k OP.
Honestly, if thats all you do, i would go for a LOW power consuming chip. You dont need the power, you should work on the energy now. Trying to get the most you can with the least amount of energy draw.