Seems like a good deal, I have been looking for a while and missed a couple of other good deals because I was waiting for something slightly better. I don't know that this is slightly better then some of the deals I missed but I am tired of looking and this is at least a fair deal, if not slick.Best of all no rebate!
The 750 Watt is also on sale for $10 more, you can switch between them from the linked page.
Thanks for the update.
44.98 AR for the 650
54.98 AR for the 750