I am looking for two new graphic cards that will be quite good for the next few years without having driver problems and such.

I am not sure what the status of the AMD and Nivida drivers are. The ones I've settled down on are AMD HD 6850 and GeForce GTX 460, but discouraged by my personal experience with them few years ago. I dont see any drivers for the AMD HD 6850 on their website but I do see the nvidia card drivers on their site... but it's both more expensive and not as powerful as the AMD one.

Drivers matter a lot when it comes to graphics and a good card with a lacking driver can be worse than a mediocre card with proper drivers.

Not sure what to do