Hello All, I am seriously thinking about picking up a used 24", 2.8ghz, 3GB ram, 500GB iMac off of craigslist. It also has a 3yr Applecare warranty that I have verified on-line which is reassuring. Apple.com also indicated that it was manufactured in mid-march 2007. My question is: What else should I consider and investigate when I go see and test the machine? Are machines built during that period reliable etc? Any advice is greatly appreciated. Thanks!