That is a NICE price on the 280, and getting closer to the $399 price at which I'd be tempted if it wasn't for all of the reports of the overheating and the 55nm replacement part on the way soon...
Also, looks like Gigabyte is leading the 'lowest price' charge!
They have their GTX 260 up at the egg for $299 with no rebate hassles:
God bless AMD/ATI for the competition! Otherwise the 280 would still be at $650!!