I decided I want a bigger screen, so I posted my 13-inch MBP on eBay. I planned on getting the June release 2.53ghz 15-inch MBP. Well, I saw that the new chips may be implemented the beginning of next year. I realize that we can't stay current with tech, but one or two months is different. If it was going to be 6 or 8 months, I would just go ahead and buy. I don't want to spend $1,600 on a new machine and a better one come out the very next month. That just wouldn't be logical. My eBay auction ends in two days and I am going to be without a computer. Would it be dumb to get the low end iMac and play with it for a couple of months until the Arrandale chips are offered in the MBPs? What would the depreciation be on the 21.5 iMac with two months use? I just need some suggestions here.