Hi, I have an Athlon XP 1800+ computer with 256 MB ddr and a geforce 2 mx400 64 meg. Im thinking of upgrading in the near future. What would be a better upgrade, another 256 megs of ddr memory, or a geforce fx 5200 non ultra? The reason i ask is becasue it will be $79.99. I play games very heavily, so what do you think will offer more performance? Help would be appreciated.