Alright guys, here we go. Yes, I do know three billion other people have discussed this but to be ABSOLUTELY SURE I want to confirm it with my own specs. I have a 13" MBP that I use in college and have a HP running Sony Vegas 7.0 at home for editing. I film with a Canon XHA1 and there's no point in owning a multi-thousand dollar HD prosumer camera if the editing software can't handle it. Here at school (Penn State), I get free access to Final Cut Express but not Pro or Motion as my account is not authorized (Kinesiology not comm major). I want to get FCP and be able to run Motion. FCP 5.1 runs about $300 on eBay so if I use an external to hold all of the heavy data, would running FCP 5.1 be smart on a MBP 13" that was just bought in August?