Hey guys, I'm looking to upgrade the hard disk of my 13" MacBook Pro (Specifications located in my signature below). I currently have the stock 320GB Hard Disk, but as it turns out, I'm starting to run low on space, lol. I want at least 500GB or more, but as I've read, 640GB and up are thicker drives. I'm also wondering whether to go for 5400RPM or 7200RPM. I've been using 5400RPM hard disks all my life and I'd love to see the differences. But the question is, are there any? I'd love to see benchmarks. Oh, another thing. I've been reading reviews and around the forum, Western Digital are better than Seagate is the general final thought. What are your opinions? Thanks for your help guys, in advance! Mo'