Hey Guys , Thanks for ur great suggestion i am enthraled about ur response,this forum is the best with great guys like u all.My bro is an ATI employee & there is no way he would get me a NVIDIA GPU so i am going to settle for the X1800XT (512 MB).I would be using it in CROSSFIRE it would be 512 x 2 = 1024 MB . I have a CROSSFIRE enabled MOBO.One more question will it be okay to have 1 GB of GPU memory or will it result in system instabilities.Anyway as soon as the R580 Chipset GPU is released i would jump to it.Thank You all of u guys.