i would stick with ur 7800gt for now until dx10 cards come out. which will be soon but only the high end 8800gtx first. if u wait a little longer there will probably be cheaper dx10 cards.
its not recalled like 1 resistor was the wrong type its hardly going to stop the launch date. And these parts are mainly high end the mid range G80 cards are not going to be out till later so there will only be limited stocks anyway.