That system is similar to my old system but mine was even slower (only 4GB RAM, Q9550 @2.8GhZ, GTX 260). The current setup is not that bad imo. You can keep everything but the CPU and mobo. You will have to replace them together. Luckily, you have DDR3 RAM so you can use that as well. Like Timman said: what do you want to use your computer for? I mean your system should be able to handle BF3 pretty well. Since you already have SSD, that's taken care of. If you were to get a greater vid card, it might not really be worth it ATM.