hey guys, im gonna buy a new ibook but i need help deciding wihch one to get, any advise is much appreciated. im set on the 12" models but i have to decide on either the new g4 ibooks or the older g3 ibook which is on special for $800. i can get the newer ibook g4 for $1000 with my educational discount. is it really worth the extra $200 for the newer G4? what are they merits from switching to a G4 processor from a G3?