Hi fellow macusers! I'm back to using a mac after 4-5 long years (I had to use a PC after selling my old ruby G3 iMac, long story) and I must say I'm VERY VERY happy that I've finally got a MacBook (the computer I've wanted for a long time). I got the white MacBook with the nvidia chipset. It came with 2GB of DDR2 667mhz and a 120GB 5400rpm HDD. I'm not a pro-user, I'm a med student so I'll use basically office, ilife, internet, mail and maybe a few games. My question is if I'll see noticeable improvements in these tasks if I upgrade de RAM to 800mhz (the nvidia whitebook supports it) and the harddrive to 7200rpm. Is it worth the extra money? How long will this kind of memory and HDD stay in the market? Should I wait and get them cheaper in the future? What do you think?? thanks!