No.
Well, let me say that differently. It would be even worse production than trying to run 4 SMP clients without the VMWare on your quad.
You could try one SMP on WXP and try a second SMP in the virtual Linux environment if you are just interested in the experiment, but I think you are going to tax your resources to the point you get less overall production.
I don't think you can improve on the PPD (with windows installed) any better than 2 SMPs with the fah affinity changer.
Pure Linux with two SMPs is about 100PPD more.
-Sid