so i know that the smp client for windows has been updated lately, and was wondering how it compares to the other clients? i have some older machines that i'm not folding with b/c it's not worth it, they are too slow. or are they? i've got a 2007 white macbook - 2.16 ghz C2D. is it worth folding on this? if i can get 4-5k PPD then i think it might be worth it. if not, then i will probably end up selling it later, when i get a new machine.