OK so I am a bit stuck. Early 2008 15" MBP bit the dust last weekend and I just waited for these to come out. I use the computer for: standard university stuff (word, ppt, safari etc.) and also SPSS BUT I do a lot of music recording using Logic Express. Will upgrade to Studio this summer. Never needed more than 15 tracks, standard about 10, but my old 5400rpm (obviously) just wasn't keeping up sometimes. I'm also somewhat interested in live-tracking drums at home now which could add up to 6 more tracks per project. SO I loved my 15" but I am seriously considering downgrading to 13" for portability--I live in both the UK & the US so lugging it all over the world makes size & weight a pretty significant issue. Only problem is, I can't get the 7200pm hdd OR the antiglare (which I adore) on 13". And of course, doing music makes screen real estate important--but nothing an external display won't fix. I also will be getting the 25% employee discount on this product. So here are my two options, any thoughts? If I were to upgrade to 8gb RAM (boyfriend wants to "treat" me to this...) & had the i7 dual or quad-core, would the 5400 still be a problem? Although 8gb RAM seems rather unnecessary, but for whatever reason he's stuck on it. I'd rather just have $200 but he's the one that's gotta buy it so... 13" dual-core i7 8gb RAM 500gb 5400rpm hdd 4.5 pounds $1,699 - 25% discount - $1,274 OR 15" quad-core i7 8gb RAM 500gb 7200rpm drive Antiglare hi-res 5.6 pounds $2,249 - disc - $1,686 or I could just keep 4gbRAM here - $1,536 Thoughts? Very stuck. $300/$400 is a pretty stark difference and I can't just throw unlimited money at it unfortunately! What about 13" + external display + external drive @ 7200rpm through "thunderbolt" (shudder)?