if you want to wait for gpu
i would suggest you get FSP saga II 400w@2k or500w@2.4k(someone at "latest purchase" posted the price)
so that you can go for a gpu more powerful than HD5670 if you raise enough money
i will say you are probably better off waiting 2-3 months before purchasing the gpu
game on the igp for the time being
anyway should've asked you earlier
what monitor do you have or plan to buy?