I got Nvidia Geforce 6800 GT DDL,
and I can tell you :
I would take Nvidia over readon anyday,
they both got a good name, but for my designs I like Nvidia even if I don't need the computer for designing I would still take Nvidia even if i have to pay like 20 bucks more it's still worh it!
Well, my experience is much better with Nvidia then Ati, but they are allways so close with their products you cant say globally Nvidia is better or the other way around. Its a product to product issue.
Nvidia anyday! i have a geforce GT6600 and it runs all my games and grafix designs fine. i havnt had 1 glich yet, so, i recomend Nvidia's grforce range.