i was thinkin a good way to test if u would benefit from more ram would be to turn your paging file off?? if u get "Error Message: Your System Has No Paging File, or the Paging File Is Too Small" then more ram would work?? or is a paging file actually a necessity? so maybe 2gb could be useful...
Pentium 4 3.0Ghz, 1Gb pc3200
BFG 6800gt, samsung 19\"
Audigy 2 ZS, TruePower 550 watt
3Dmark05 - 4750, Aquamark3 - 59 200