Hi all, A long-time PC user, the iPod convinced me to switch to the Mac. I am therefore selling my centrino laptop to buy an iBook (although I'll wait for the expo in January to see if the PowerBooks get any close to my budget). I've noticed that both iBooks and PowerBooks come with 256MB and a 30 or 40 GB hard disk standard. From my PC experience, I know this is really not enough, and I think I should go for at least 512MB + 60GB, if not 1GB + 80GB. Am I right here? I mean, does OS X use as much memory as XP, and do the applications "eat" as much space? I should add that I store all my MP3's on my 20G iPod... Thanks!