the best thing you can do is build it yourself cause pc parts are cheaper by themselves or if your not sure about building then by a brand name but remeber that part of the cost is down to the brand name of the pc.
if your building it start with the graphics card then select the parts compatible with it.
ati cards are best suited to intel based systems and nvidia cards for amd based systems
if your building it start with the graphics card then select the parts compatible with it.
ati cards are best suited to intel based systems and nvidia cards for amd based systems