Being an intel farmer here I saw core and assumed c2d
But your x2 would also produce more i am sure folding win smp.
You can complete current wu's without getting another by restarting the client with the -pause or -oneunit flags. If you are running as a service then just run it not as a service with those flags ... if you choose to switch to the smp client.
The only potential issue with the smp wu's is that one - the 2610? can use about 350 mb of memory. the other 2 current ones are 100-200 mb.
/edit

... what am I explaining switches to you for ... you wrote the FAQ ! ... well maybe someone else will learn from it :shrug: