I've had an IBM Thinkpad for the last two years and have finally made the decision to jump over to the MBP, but I've been debating over which configuration would be best for me. I travel a lot with my laptop so I've ruled out the 17-inch model, but need to decide between the 2.2 and 2.4 processors. I'll be using the MBP for basic e-mail, Web, word processing, Excel tasks but I also use Adobe InDesign for publication design. I plan on keeping the MBP for about 3 years. Is it worth the extra $400 for the 2.4? (I qualify for the education discount.) RAM: Since I can't upgrade the RAM on my own and still keep the warranty, will 2GB be enough? I will still need to run Windows XP either through Bootcamp or Parallels. Hard Drive: I'm trying to decide between the 160GB 7200rpm and the 200GB 4200rpm. Is the extra speed worth it in the kind of computer tasks I've described? I'd appreciate any input before I buy!