as ryan says, go for a intel chip only a 3ghz or 3.2 or something.

up 2 u but if u wanna pop round here and bring ur old machine, most of it will be usable in the new one.

i can get u a price together if u like, order the stuff here or bring it with ya and we'll spend a few hours putting it together.

oh get a 450-500W psu case as well