I have a 15" MBP with 100GB hard drive (I know, the first MBPs were a horrible deal). I really want to get the 320GB 5400RPM WD Scorpio or the 200GB 7200RPM Seagate Momentous. I have two questions, which drive should I get? The difference in price is $60 (150 vs 210) but the diff in capacity is huge. I guess my question is, will the 7200 RPM drive be considerably faster than my 5400 right now? Secondly, I really want to be able to copy all of my stuff just like a Mac to Mac Firewire transfer and copy it back to my new HDD after the swap. I have a FW hard drive, but I am not sure if it is possible to copy it onto the drive and then copy it back. Also, if it is, can anyone post instructions and the amount of difficulty? Installing the HDD is not a factor, I know it is difficult, I will get someone to install it for me. Thanks.