Quote: "ATI Radeon Xpress 200M Integrated Motherboard graphics"
Definitely stay away from integrated graphics and graphic cards. They are the kiss of death. I even had what I thought was a NVIDIA integrated card and thought it was going to work well. A total disaster.
Marc Steene probably is right on with an i5 processor and
dedicated graphics card. I would make sure that it is also a 64 bit and 4GB, at least, of RAM and plenty of Hard Disk Space for Virtual Memory use. I haven't been pricing lately but they do seem to be coming down in price.
THEORY - you know everything but nothing works. PRACTICE - when everything works but don't know why. For me, theory and practice are combined: nothing works and I don't know why.