I am starting to shop for a replacement for my age old G5 20 inch iMac. It bugs me that there are no 24 inch iMac's anymore and I cannot justify the price of a 27 inch (let alone the space needed for it). I was on apples site and went to the refurb section. On the entry level iMac 3.06 C2D I can save $200.00 on the unit. I have tried sticking with my G5 but it is getting tons of spinning rainbow balls and the fans run all the time. Any thoughts on the refurb units? I know they come with 1 year apple warranty.