Hey all. There are probably a hundred posts about their computers and why it lags and all. But if anyone would like to shed some light on to helping my setup; which i think is fairly good then we will all be set!
I set both FPS settings to 200 in-game (Max Forground FPS / Max Background FPS)
And i have even tried the "Ambient Occlusion / Antialiasing - FXAA " (The latter was suggested from nVidia's website)
My setup is : Intel Core i7 2600k @3.4GHZ 16 GB RAM NVIDIA GeForce GTX 590 (EVGA) Diablo 3 installed on my 120gb SSD which is also where my windows 7 is installed to. I've got the latest gpu drivers installed.
I notice the biggest fps drops during act 3 on the bridge where theres a TON of units on the field. My FPS goes from (100-200) straight to 3-10 FPS.
Thanks for all the help everyone, It is greatly appreciated Elmnt