Ok, i'm going to be building a dedicated folding machine and i'm looking for suggestions on the best bang for the buck.
I'll most likely be running a linux client of a bootable CD as that would be cheapest I believe.
Here are my questions.
1) One of our sponsors will donate a cpu to us for folding but it would have to be older stock (something that isn't moving well) than say a Quad Core.

Which one would produce the most PPD?
2) What is the minimum ram that would be required so that it wouldn't bottleneck the CPU.
3) A cheap stable mATX MB that overclocks well. I would hope to hit 3ghz but it would obviously depend on the cpu.
3) Low budget mATX case, hopefully with no PSU as I will want to put something better in.