yeah, the unix platform is a bummer, but it's about the only way to control cameras that aren't high end. Seems like even expensive dedicated windows software like Nikon Camera Control Pro may be limited in the capabilities useful to set up a web cam.

They have a free trial - I'll grab it later this year when I get some time and play with it. Thing is - software, camera, lens, and you're suddenly spending $500 on stuff.