How much power would be sufficient to run Soundtrack Pro and Motion 2? I was planning on a iMav G5 2 ghz with 2GB of ram, but am unsure on how well it would run each program? Would I be able to work efficiently with this setup? Also, I'll be working with final cut studio, and FCP, so would a 17" really hinder me when video editing than a 20" iMac? I want to ask video editors for their opinions because I will be new to pro/prosumer video editing on a mac desktop.