Ive been keeping up to date as I build computers to make myself a bit of extra cash.
As of now AMD has better performance for your money than Nvidia although with Nvidia you get PhysX which is good for games that use PhysX but not the equivalent AMD physics for some things.
If you go for a new AMD 68xx card you will be able to have 3D, it is no longer limited to Nvidia cards although monitor support for AMD 3D is rather low at the moment but will improve after a short wait.
My personal recommendation is only go for an Nvidia card if you want the best possible single GPU card (the GTX 580) or a mid-range card with PhysX (the GTX 460 or below). The rest tend to get really hot and use lots of power. Anything made by AMD will normally be better performing than the Nvidia cards at the same price.
If you can be patient to wait for more of the Nvidia 5xx cards to come out then you will most likely be happy with them as they seem to have fixed the problems with Fermi with the GTX 580.
The new AMD 69xx cards have been delayed but the 68xx cards are doing well and are well priced for what you get.
As of now AMD has better performance for your money than Nvidia although with Nvidia you get PhysX which is good for games that use PhysX but not the equivalent AMD physics for some things.
If you go for a new AMD 68xx card you will be able to have 3D, it is no longer limited to Nvidia cards although monitor support for AMD 3D is rather low at the moment but will improve after a short wait.
My personal recommendation is only go for an Nvidia card if you want the best possible single GPU card (the GTX 580) or a mid-range card with PhysX (the GTX 460 or below). The rest tend to get really hot and use lots of power. Anything made by AMD will normally be better performing than the Nvidia cards at the same price.
If you can be patient to wait for more of the Nvidia 5xx cards to come out then you will most likely be happy with them as they seem to have fixed the problems with Fermi with the GTX 580.
The new AMD 69xx cards have been delayed but the 68xx cards are doing well and are well priced for what you get.