Well in that case you can go for it. I'm pretty sure a single graphics card can handle Skyrim unless you really want to go with 2. If you go with just one, you can upgrade it to a GTX 660 Ti. Have you thought about adding an SSD?
i would like to use ssd but that wont be until next year i already spent all my money XD and wouldnt i need 2 graphics card to run both screens on 1920 x 1080 resolution and game on one screen and watch a movie on other or just watch youtube videos or to talk to friends?