better save up for a few more months. while you wait for the money to roll in, maybe look into what processors gateways tend to use., becuase any gamer will tell you amd is the way to go. do u plan on buying a gateway comp and upgrading it?
I know a configuration for around 500 (w/out the OS) that would max out games like Half-Life 2, Halo, etc. It is true though that it wouldn't do as good as a $700 to $800 computer, but it would work fine for gaming, trust me.