Hey im new to mac and i might be buying one its a imac 20 inch g5 with a 2.1 powerpc prossessor and has 1.5 gb of ram and a 250 gb hd and a ATI Radeon X6000 XT graphics how much should i pay for it and also how long would it be before i need a new one/ upgrade because its will be to crappy to preforme and how will it run, slow, fast please help sorry for all the questions im new. i hope this is the right section to post this lol
It's the right section, though you'll get more responses if you'll use some punctuation and paragraph breaks next time.
The iMac model you're talking about is old: at least three, could be almost four years old now. It's by no means a bad machine, quite the contrary -- but if you're hoping to do all the "latest and greatest" on it, I think you'll find yourself needing a new one fairly soon. It does have USB2 and FW400, which is really nice, and an iSight which is very useful.
I think you'll find it speedy enough (I'd give it more RAM if I were you) for most apps/internet these days, and for some time to come yet, but don't plan on hanging on to it for more than a couple-three years, and if you're a gamer or "bleeding edge" type then you can change that down a year or two.
I don't have handy the URLs for the sites that tell you how much a particular model Mac are "worth" these days, but maybe someone will chime in with that information. Don't overpay for a machine that old, but OTOH if it's a sweet deal it's as good a "starter mac" as anything.