Thanks for those replies!
I'm now sure that I'll add a second 22" LCD @ 1600x1050 in the coming months.. I understand the 8 series is recommended but can someone tell me if the memory is important for such high resolution on 2 LCDs?
Is the clock speed only important for fast games?
What does quick rendering of large PDFs require?
Any of those mentioned will be more than enough for your purposes. The best performing card that's in your $50-60 price range would be hd3650. Although it's an overkill.http://www.newegg.com/Product/Product.aspx?Item=N82E16814102726