I have an Abit AX78 motherboard and currently have an AMD Phenom 8450 triple core CPU and a GTS 250 GPU.I am not really strong on money,but I plan on buying from someone an AMD Phenom II X4 965 and a GTX 560 ti.I am pretty sure the AMD Phenom II X4 is compatible,but I am not so sure about the GPU.Anyone have any advice?