blackrockets :
planning on upgrading my gpu and was wondering if i should get the 6970 (about 350) or 7970 (about 540).
does anyone know if you will be able to use, say an 8800 gt (with the driver hack) with a 7970 so you can have the physx?
Well, I don't know about the 7970. But I do have a couple of 6970's and would not dream of tinkering around with unofficial drivers.
If I was you, I would go with the 7970 and be happy you got it. Throw that 8800 out the window.
If PhysX is that big of a deal, I recommend going with a 580 3GB (if you can spend $550 on a GPU, you can afford this) and using the 8800GT as a PhysX card - would probably be better than a 7970 and a 8800 with cruddy basement drivers. At least in the long run.