I prefer the look of the powerbook
I just think that if I'm goign to be spending all this money ( around 1500$ ) might as well get the better, faster model. I would definitely use the "spanning" feature but I am aware that there is a hack for the ibook.
Also, I really don't think the ibook is much cheaper: I'd be adding in an extra 512 mb ram, and hte 30 gb hard drive it comes with is way too small - I have like 11 gb of music, 5 gb pictures, and I have a lot of videos saved. The ram upgrade will cost me a lot of $$ and the hard drive upgrade to 80 gb is 195$ (canadian) !
I configured both machines, and with my education discount:
12" ibook, 60 gb hd, 768 mb ram ,bluetooth - 1542$ canadian
12" pb - 60 gb hd, 768 mb ram (bluetooth comes integrated) - 1775$
the difference is 233$ for:
1) Faster machine (1.2 ghz vs. 1.5 ghz) and more FSB
2) Faster hard drive (5400 rmp vs. 4200 rpm)
3) Smaller package
4) Better video card (although I probably won't ever be playing games, maybe like once every few weeks/months)
I think that this 233 $ is justified, but I know instead Ican max out the ram on the ibook with the $$ but it still won't be as zippy as the pb.