I already upgraded in November last year but voted will buy ATI, since I believe that describes the situation better.
For me upgrading to GTX 480 is not an option since in my case it is downgrade.
The ONLY option for me upgrading with NVIDIA cards would be getting 2x GTX 480 at about $1000 (if lucky).
Would also need to buy new mobo, NVIDIA is recommending to run the GTX 480 SLI on slot 1 and 3 (read here
), not possible on my setup and i would most likely also need water-cooling.
All together about $2000 upgrade so the bottom line is NO thank you, waiting for the next round.
The above definitely doesn't mean to say that the GTX 480 is bad upgrade for some people. What ever you buy I hope you can enjoy and happy gaming.