It would help greatly if said person already had the inclination to build a PC. If not, they'll probably just buy a budget pre-built PC from a well known vendor through retail if they want to overpay, or through an online discount site if they want to save a few hundred.
Typically, only the pre-built PCs with "premium" video cards (which right now would be a run of the mill 8800GT) command premium prices in addition to more HDD space, and maybe a 64bit OS with the additional RAM it allows.
I'm not even going into premium pre-built gaming rigs like the Blackbird or Alienware.
While I realize every bit counts for a lot of gamers, I think the value of learning how to build a PC through the process of research and hands on doing is actually worth more than the money you save on the price of components.
Technically, you can buy a pre-built bargain PC that will do everything but play games optimally for the same price. The main differences will almost always be the video card and the power supply.







