If you aren't gaming then any card will do really or just get a motherboard(or processor) with built-in video.
For gaming at 1920x1080 at least an HD5770 is recommended in general, preferably a GTX 460. However if you are willing to lower some settings and play the more intensive games on medium settings then something like this will be adequate;http://www.newegg.com/Product/Product.aspx?Item=N82E16814121381
It's a good deal. Get it while it's still that price if you aren't willing to raise the budget for an an HD5770.