I'm currently working on a MB, 2GHz, Intel Core Duo, 512MB. It's been fine so far for really basic work, but I'm going to be working in CS3 a lot in the next 8 months or so (haven't yet purchased it so I don't know how it's going to run on my MB). I'll be working with RAW photo files, using InDesign to layout pages, etc. I've been thinking of upgrading to a MBP for a while, mostly b/c when I'm working with photos and editing video it's pretty slow and it seems to be running really hot. What do you think? Should I upgrade to a new MBP or should I be fine on my MB? I've never had to worry about upgrading my system since I switched to a Mac, so to be honest I'm not really clear what I can do with what I already have, too. I'm a graduate student, so of course funds are really tight and I'd rather not spend the money, but I also don't want to be tearing my hair out as I'm trying to put together a thesis while in a foreign country. Thanks!