I have built a new computer and i need advice on getting a video card. I have a 1929 x 1080 monitor and i want to be able to have a card that will last at least a year. i prefer nvidia although radeon will do too and my budget is $250. I plan on playing Star Trek online and Railworks 3.
ASRock Z77 Extreme4
G.SKILL Ripjaws Series 8GB
Mushkin Enhanced Chronos Deluxe 60 gb
Look at the non-reference 560 Ti designs, factory OC'd to 900 Mhz. Among them you will find several models that have upgrade dPCB's and beefed up VRMs. The ones w/ 7 phases or more and the special coolers have been known to top 30% overclocks over the reference card speed.
you might want to wait for GTX 660TI which is rumored to be released this august.
His budget is $250 not $300, I 660ti is going to perform above the gtx 580 so if the OP can wait a few weeks and chip in another $50 it would be a much better purchase, for $219 the gtx 480 is the best performance option.