I would like to upgrade my cpu, motherboard, and memory to last me another 6-10 years. Needs are primarily multitasking, Web browsing on 2 monitors. I have been on the forums and have been guided towards core I3, I5 and Xeon processors. I believe that adding a new cpu and motherboard that it would be best to include the latest memory......am I correct in thinking this way? What are your thoughts?