Ok I got a computer recently I planned on using as my game computer. It is a full sized ATX case , with a Biostar (I think that is what it is, because that is what it says on boot up) mobo. It has AGP 8X and an AMD Sempron 2200+. I can't figure out how to determine what the best processor I can get would be. It does have a 350 watt power supply (plan on getting 420). It also has a Power Color Radeon 9250 128mb 64bit gpu. Also, is it normal for this computer to perform on-par with the Dell in mu system specs?