Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
uhhhh i'm not sure what this means exactly?

get the imac.
g5 (i assume you mean power mac) are still great, quick computers, but i don't know if i could suggest that anyone actually purchase one for their main computer, given solely that the PPC macs are quickly becoming obsolete (not nec. in terms of performance, just software support).
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.