question on graphics card

I'm relatively experienced with building computers, and i can't find accurate benchmark results, so i was just wondering on what i should do.

Im looking to upgrade my graphics card due to an increase in pay at work, what do you recommend? Here are my current specs:

Windows 7 Ultimate
I5 2500k
16gb Ddr3 ram 1666mhz
Asus P8p67 Mobo
750gb sata 3gbs harddrive
Asus xonar ds audio

Now, for the current graphics card, i have the gtx 460 se, i have a couple options:

Should i get a totally new graphics card, like a radeon 6xxx series? or even a higher end nvidia card and use my old gtx 460se as physx

Or should i spend the 120 on another 460se and sli them? Which would be better for me? My budgets around 150-170, help is greatly appreciated

One more 460. and there's nothing as i5-2400K made.

Amnesiac said:

One more 460. and there's nothing as i5-2400K made.

Click to expand...

2500k* Im a little tired, also, what would you recommend for a psu? i have a 700 watt right now, would that be sufficient?

Yup. 700W of which company? What model? Just 700W isn't enough .