ATi is getting close to the release of their next set of video cards. The ATi R580 will come in four different versions. I used to be a big Nvidia fan, but my last few generations I have moved back to ATi as I have really enjoyed the products. This next line of cards looks like they will keep me too, as I look to upgrade. I had been eying the latest Nvidia cards, but with these new offerings, I think I will still be sticking with ATi.
The new products will be named Radeon X1900XL, X1900XT and X1900XT CrossFire Edition.
You can read an article about the cards Here