I'm now going to use my dectop computer as a webcam. It's pretty easy, just installed debian, then downloaded the gspca driver, downloaded the linux-source, the make! Only thing that was a little tricky was I had to change the kernel directory to /lib/modules/build in the gspcav Makefile.
I'm using the cheap and linux compatible refurbished logitech quickcams from ecost.com, as described at My Tech Deals.