Both the configs above are good. But I think he will benefit from an IPS panel for his work. Something like a Dell U2211H, or U2311H or U2411H. can be used for gaming too as in my case (only gaming) but is more suited for photoshop and such.
No doubt GTX 580 is the best single GPU card but the performance improvement over a HD 6970 or GTX 570 compared to the price it is not advisable. Even a HD 6850 or GTX 460 1 GB dual GPU setup beats GTX 580 at around 10K less price.
So get a HD 6970 or GTX 570 twin frozer III version and enjoy gaming. They can handle 1080P resolution with ease. Add another card in future if you feel you need more performance. Don't just jump to GTX 580.
comp@ddict, buying two cheaper GPU and selling them won't hurt your pocket that much as in case of selling a GTX 580. A can still get 9-10K for each of them. Even after one year, 5 to 6 K can be squeezed for HD 6870.
And also CF of two HD 6870 will also save you more money, around 10K I guess and you will get better performance than the most powerful single GPU till date. I don't think you need to upgrade your GPU anytime sooner and you can use it for two years down the line. The money saving thing is applied here while offering more performance.
But I'm with your suggestion to go with a HD 6950 2 GB version for now and add another after some time to get double power. In fact i have suggested that also, with HD 6970.
Should I buy Amd Phenom ii x6 or i7 2600k?
I choose asus rampage iii extreme with intel or asus crosshair V formula with AMD?
Can anyone explain me or find a tutorial of explaining water cooling?
I will get from this shop: SMC international