So I'm giving my old pc to my mom who generally uses computers just to watch some videos, read her email and surf the web, not play any games or anything too demanding. One piece I have to replace is the gpu, since the cpu (phenom2 x4 955)doesn't have integrated graphics. What gpu would you guys recommend for her, it doesn't matter if it's nvidia or ati/amd , just something under around 50 bucks