I am buying a new iMac for my parents. They use a computer...like parents in their 60s would use a computer. Basically internet browsing, a few digital pictures in there but not really concerned about storage. Their current machine which is dying is a 2007 iMac. I am tempted by the new models but I don't think they need the power and I would like to keep costs down. Suggestions on an option? If I were to try eBay, suggestions in previous gen model/specs.