[alex]

jim are you shoure you friend knows that much about pc's as he has a good prossesor but if he knows anything about overclocking he can get the same performance from a much cheap cpu and they will clcok to the same speeds and he cant have ddr2 as amd do not support ddr2 yet the will with AM2 but thats not out till later this year and then there is no point have more then 2gb in your system will work faster with only 2 as it only has to split the work betwwen 2 slots rather then 4 which will also mean that you will have to run them in T2 rather then T1 in wich there is a huge diffrence and there are no amount of programs that people will use that mean they need 4gb and if he is runing xp home then it can only see and use 3.5gb of he ram anyway....