Graphics Card help

[HardcoreEricXXX]

I was thinking I want to get a new desktop sunce I haven't had one since high school. I wanted to do a dual screen setup. I'm sure there are better forums to ask this. But....What type of video card should I be looking for to accomplish this for HD output? The extent of my gaming may include me rekindling my love for StarCraft, but I don't need anything special. I'm just looking for AFORDABLE, dual screens, and enough to run StarCraft well.