I would avoid that Ripjaws kit -- they're a full 1.65 volts, which is not only bad for your IMC's lifepsan, but can hamper OCing. There's been a few cases of fried i7s at only 1.7 volts on the ram. The G.skill ECO series with the same speed/timings is the same price but only 1.35 volts.
That's a LOT of money to spending on a 460, even for 2GB versions. For 10$ more you could move to 470s, which gives you 5/8 of the RAM but ~50% more processing power.
And the 460 has the advantage of being tested with newer drivers. I'd say the 470s would be better, seeing as I run 5040*1050 off a single 1GB 5850 and have no Vram issues with 4xAA. That's 85% of your resolution and I'm fine off a single 1GB card.