Maybe I overstated myself with "pipe dream". I still think SETI is a good project, and I'll probably evenutally return my computing resources to it. But at the moment, I think folding@home deserves all the power it can get.
Oh, and, at least in the short term, I've only got 2 computers on this, not 4. My slackbox has a long-standing issue where it locks up under certain kinds of load (folding@home providing that kind of load). I think my laptop is a similar boat, though instead of locking up, it shuts down entirely.