Quickcam and various platforms

[ugly_411]

Hey guys.

I am in the process of writing a few tools for various astronomers 
who use quckcams and webcams for star imaging. I wish to be able to 
write up packages for generic linux, windows and Max panther. I have 
found for windows the VideoCapture module, which I have had some 
remote success with. I have seen much for Video4Linux for which I 
have no experience (yet). SO my question is this:

Does anyone know how to access the cameras (USB specifically) in any 
of these operating systems? I don't mind writing a new interface if 
that's what it takes!

Thanks !

Ugly