My opinion is that Nvidea makes great drivers. To fully utilize their hardware. Unlike Ati. So, I really dont beleive that a card by them would be buggy. Unless, however, if they rushed it to the market to beat Ati in some sort of race.
I'm wanting to buy the 7800GS. Now, I've heard that it's buggy as hell, however, not sure if that's true or not. So, I need help on choosing which 7800GS to get, or not get at all.
I say spend some money for a PCI-E compatible motherboard (the GS is AGP only right? I don't know), and then save the rest and some more for a newer graphics card since the 7800 series is probobly going to be replaced in the near, near future.