I've got a couple of the ASICMINER block erupters plugging away on BTC, but I also have two MacBook Pro laptops with CPUs not doing a whole lot from time to time.

Recognizing CPU mining is dreadfully slow, and that it's unwise in some cases to mine due to overheating, are there any coins that people think could be profitably mined with the CPUs alone?

My guess is the answer is no, but I try to make decisions in life based on evidence, not guesses or gut feelings. 

Thanks for any input, discussion, advice, abusive language (wait, what?), etc.