Hey there! I have some questions about upgrading the MacBook Pro. Note that I do not own a MacBook Pro yet, but I am going to purchase one in the following month (March/April). If they update the MBP line, I'll get a new one. If they don't, I'll get a 13'' low/high-end MacBook Pro. Here comes in my first question. I'll be upgrading the RAM/HDD myself; which makes the high-end 13'' cost €200,- more for just 0.27 GHz of processor speed. I this worth the money? I'm not prepared to pay the extra €200,- if the difference is minor (which I think it is). What will the difference(s) be? I'll mainly be browsing/listening to tons of music and occasionally I'll be using Photoshop/Illustrator for graphical design. Now if I take the low-end 13'', I'll be upgrading the RAM myself. I was looking at 2x2GB modules from Kingston. Does anyone have any suggestions about RAM that performs extremely well or better than others? I'll also be updating the HDD, but I can't decide if I'll go for a 5400 RPM or a 7200 RPM. That's where another question comes in. What are the advantages and disadvantages of a 7200 RPM over a 5400 RPM? I've read that some 7200 RPM drives produce a lot of sound and excessive vibration. This is something I don't want to happen. Does anyone have a 7200 RPM drive that doesn't do this? If I'll go with a 5400 RPM drive, I'll probably go for this one. Does anyone have a better idea for a 5400 RPM drive (better performance?) and does anyone have a 7200 RPM that performs great in a MacBook Pro without making too much sound/produce too much vibration? Also, what will happen with the battery life if I put in a 7200 RPM drive instead of a 5400 RPM drive? That's it for now, thanks already for your answers!