I'm going to be working in sort of a virtual recording session with a friend of mine, and we'd like to have our webcams (with sound... that part is important) working so that we can converse easily.

Doesn't need to be super high quality, it just needs to a) work on his Mac with the iSight camera, and b) work on my Windows 98se with a cheap USB webcam.

The trick is getting them easily cross-platform interoperable with sound. Yahoo doesn't have sound as far as I know, does it?

Anyone have suggestions as to which package we can use?

Edit... he's on OSX and currently uses iChat AV...