HEYYYY guys. Here is the question...idealy I would get the dual 2ghz powermac...but am wanting to save a few bucks for an external backup drive...my question is basically HOW capable is the 20" iMac for both film editing (quite intensive) and music composition (logic express styles). I've always edited on a PC, but am sick of Premiere...switching it over to some Final Cut action. I am a day-to-day mac user, and am familiar with the final cut workings...but didn't know how capable the imac is compared to the powermac...oh and also will be using some Motion goodness. will the iMac cut it, or is the powermac worth the extra 400? (cad) Thanks guys!