so I found a deal at a local apple store on a uMBP ("old" version 2.66/4gb/320gb/glossy, which I love) for $2099 + tax. I currently have a 2008 15" pro, which I love to death, but I just want to get something Bigger since I spend probably 12hrs a day on my laptop (for school) and personal use. I mainly do powerpoint, pdfs, word files, web browsing, DVD watching, chatting, etc. Nothing intense at all. I'm mainly drawn to the increased resolution of the 17". I do travel, but it's very short so size is not THAT big of a problem, but on the other hand I fly maybe 5x+ a year, but since I have the 15" on my lap anyway, I figure it's not much difference vs the 17" if I have that on my lap as well. The ONLY thing holding me back is the price, as I feel extremely guilty spending this much on a laptop, especially in this economy and with student loans, etc. I figure if I go with the 15", there isn't too much difference between what I have and I'll be very unhappy. AHHHHH. any guidance!? Battery life is also very important, and with the built-in graphics w/ the 17" I figure I can get around 6hrs doing menial tasks as described above (the demo unit at apple store indicated around 6.5hrs after I was messing around under my "normal" conditions) thanks for the help!