Greetings... I am currently working with a pre-unibody macbook pro. Specs are 2.53 Core 2 Duo, 512mb video card and 4 gigs of ram. I use this computer for light video editing, audio recording and video djing. All in all it pretty much holds its own at all the tasks I need it to do but the applecare is expiring soon so I will be moving this computer to backup status. My only real requirements are that it be able to work well with mixing hd music videos. I can do it now but my current model heats up quick and I do get some random dropped frames. What current MBPs (13 or 15in models) will best this model in cpu and graphics. Will the current base model 15inch or upgraded 13inch be an actual upgrade that I will be able to notice or do I need to step up the upgraded 15inch? I am looking at keeping this new purchase for another 3 years but am trying to keep my budget within reason if possible. Thanks for any help on the subject.