Ordered a 2.4Ghz SR MBP. Stock 160GB HDD at 5400rpm. Going to wait a few months before I void the warranty, and for prices to fall. However, on the off-chance I consider upgrading right away, what will fit? An external hard-drive is nice, but I prefer having my data concentrated on the one drive, with DVD-RW backups archived at home for 'safety' [ie. if the MBP is stolen/damaged]. I believe they have to be no higher than 9.5mm, however, from the research I did. 250GB Samsung Spinpoint (won't fit?) 250GB WD Scorpio (should fit?) The WD is looking quite good; 250GB and 5400rpm is a good median for the work I do.