Best Drivers for 6600gt AGP

The ones that work for you best I'd say, why you ask.... well a driver version that would work for me well with a 6600GT may not work well for you, installed hardware and software would be different between PCs.

best advice is try out some see whats stable with your PC and all the games you may play and stick with that one, if a newer driver comes out try it, if its not better then rollback drivers, until a newer one comes out that may work well for you.

Try all your games out for speed, clarity of image and even do a 3Dmark benchmark to test simulated speeds between drivers.

latest driver from Nvidia ( fixes a few issues with games )
http://majorgeeks.com/NVIDIA_Forceware_2K-XP_d3294.html