While looking for a used budget graphic and gaming computer, I picked up an Alienware aurora for $500. It has pretty good specs. but I have about 100-200 to do a minor upgrade and was wondering where to put the money.
Ram is dirt cheap pick up an 8 GB kit 2 sticks @1600 speeds G.Skill $50
OCZ Vertex 4 128GB is $100. Later down the road you can pick up a more highend gpu when you got some cash, definitely wait for AMD 8000 series or 700 series from Nvidia.