I have a Linux box multitasking on some "silent" tasks...and I want surveillance of my workspace to become one of them.

I'm looking to purchase an inexpensive (< $50) webcam product...what available today works best out the box with Motion?

I do not need the remote control features of Motion, but it still seems like the proper program to use.  What are some other Linux-based motion detection programs I might look at for comparison?

I very much appreciate any assistance you can provide.