Thanks guys!
The Diablo miner works pretty well. Strange that my MBP's 330M gets about 1800khps and my MB's 320M gets 5200khps. Any idea what the cheaper one is doing so much better?

Does the rpcminer author provice binaries?

Can the bitcoin.org client act as a miner? I see that the conf file can have username/password added to it.

Thanks again for the help!!