One must be careful not to purchase ANY early generation iMac G5's. The earlier models are wrought with power supply and logic board failures. If you're lucky enough to have 3 year Applecare when your logic board failure takes place, then you will be able to appreciate the savings of the $900.00+ repair bill. Note that power supply issues are covered under extended warranty by Apple on SOME models of the iMac G5(2.0 ghz). Go to www.apple.com for more information as to which machines are covered. At this writing, Apple is NOT making up repairs for faulty logic boards on these machines, so if you buy an iMac G5, be aware that the logic boards are experiencing failure rates in upwards of 40% of these early generation iMacs. Google 'iMac G5's running hot' and you will see a Popular Mechanics article discussing their imminent failure of 40% of their machines. My iMac G5 was purchased in March, 2005 for $2100 and the logic board fried in July 2007. A lot of money to pay for a machine that lasted a little over 2 years. It appears the G5 processor operates with a temperature much too hot for the logic boards to withstand over time. The fact the iMac is a compact design doesn't help much, either. If you happen to own one of these machines, do NOT enclose it in a cabinet unless you shut it completely down after use. The CPU operates while it is asleep and can overheat. It is recommended that you shut it down when not in use to preserve board life. If you are selling an iMac G5 and it has been repaired for one of these issues, it would be advisable to include proof of such in your auction.