Hello. I'm planning to buy a new graphics card for my PC but I'm not sure which would be the best for me. I'm not willing to buy new psu (unless it's the only solution). Here's information about my PC: http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02586266&lang=en&cc=us&contentType=SupportFAQ&prodSeriesId=4169547&prodTypeId=12454 My budget is about 120 euros. Thanks in advance!