With the recent re-design I'm really conflicted between the MB and the MBP. If you spec them out very similarly (for the sake of a fair comparison) you can find a ~$500 dollar difference (Educational Prices). I'm not conflicted by the price per se, I would normally just buy the MBP, but I really like the idea of a slightly smaller machine and I'm not a big fan the MBA. In the past, however, the MBP stood apart from the MB even more (I think...). $1589 -- 2.4GHz Intel Core 2 Duo 2GB 1066MHz DDR3 SDRAM 320GB Serial ATA Drive @ 5400 rpm $2099 -- 2.4GHz Intel Core 2 Duo 2GB 1066MHz DDR3 SDRAM 320GB Serial ATA Drive @ 5400 rpm What are *all* of the differences? Can we compile a list? Some of the differences may be subtle. For example, on the old 12" PB couldn't swap out the battery while asleep, but you could on the >15" models. I always found this very handy when flying. Here is what I know is different (some are *very* obvious): Weight (13" is lighter, 4.5lb vs. 5.5lb) Screen size and resolution (13" vs. 15", 1280x800 vs. 1440x900) Graphics Card (no 9600M in 13") Speaker Grill (none on 13") Processor speed (can be higher in the 15") L2 Cache (3MB as spec'd above, but up to 6MB in 15" possible) Ports (FW800 on PB) What else?