My boyfriend just purchased his gaming computer for Battlefield 2, which is an extrememly graphic intensive game.
For $800 (including shipping) he purchased from HP a computer with:
A1350N with a AMD Athlon 64 X2 dual core 4200 2.2 GHZ CPU
1 GB RAM (capable of 2 GB)
250 Harddrive
integrated card
He added on once he got the pc in:
430 watt power supply unit - $70
NVIDIA 7800GTX 256 MB PCI-E - $350
So for $1220 his game now runs max settings at 80 frames per sec, which is low for a game like the Sims but better than the average Battlefield user who only gets 40-50 fps because of the intense graphics of the game.
The HP was on sale 2-3 weeks ago on their site. And he went from a bitch fest everytime he played his game to joyful and excited clapping.
![Wink](/smf/Smileys/default/wink.gif)
You can always break a pc down even more and build things cheaper, but if you do not want the hassle of doing so then I would recommend something like what he did.