want to run a cpu miner alongside a gpu miner

[borochris]

After a lot of trying (2 days) I finally got a cuda Miner running (couldn't get it to recognise openCL at all) but would like to run a CPU miner alongside it to increase my rate marginally as I have an 8 core machine doing very little.

I cannot seem to get a CPU miner running though.
I downloaded the current ufasoft miner but that just caused a crash.
Is there a cpu miner that works with this project?
Can it not just use the one built in to the main bitcoin client?

And yes I know that I won't make any money with this.