Also, your processor is slow. 2.4 Ghz with a Pentium 4 isn't that fast. You should think about getting at least a Pentium 4 3.4 Ghz processor.
Or if you can't afford that, get an Athlon XP 3200+ or later processor, if you don't mind switching to AMD. An Athlon 64 2.0 Ghz processor will beat the **** out of any Pentium 4 2.4 Ghz processor. Just a heads up.