Thats the current build, but I'd like to shave off some money if its possible, without risking any performance. And maybe you could find something to increase performance without increasing price.
---------------
XPS M1730,IntelCore2Duo T9300@2.5GHZ,2x8800MGTX in SLI,4GB DDR2 667 RAM,DUAL 250GB 7200 RPM,VISTA HP with SP1,17" with 1920x1200 resolution
The RAM that he has choosed is 4GB and has the same specs as the first REAPER one u posted (the timings and the voltage of the RAM that he has choosed is better and the REAPER one has better cooling, so the difference isn't much) then why go from 4GB to 2GB when u can afford the 4GB ?
---------------
XPS M1730,IntelCore2Duo T9300@2.5GHZ,2x8800MGTX in SLI,4GB DDR2 667 RAM,DUAL 250GB 7200 RPM,VISTA HP with SP1,17" with 1920x1200 resolution