I'm looking to get either the base 13" MBA or the base 13" MBP to take with me to uni. Apart from the usual college stuff I plan to be using it for audio production. The main software I'll be using will be Logic and Ableton Live with a small array of plug-ins. It'll be used both for creating music on-board as well as recording instruments. Additionally, throw in some Photoshop use as well. Now the two models look pretty darn identical in terms of basic specs apart from the hard drive and the processor speed. If I get the MBP I'll be upgrading the hard drive to a 128GB SSD. My question is whether there will be a substantial difference between the two for my needs? I like the Air's form-factor and superior screen resolution over the MBP but I don't want to buy a possibly underpowered machine just because of that.