Bandwidth for webcam streaming?

Hi, i'm new here.
I'm trying to stream a webcam from 1 server to many client, what I really need to know is :
1. How to adjust a bitrate video for bandwidth streaming, is it enough just using a Camera.setQuality() ?
2. If u set Camera.setMode() at large resolution, for example at 1024x768 is it could make the bandwidth for client access increase too ?
I mean is it affect the bandwidth for set the resolution at small (ex: 160x120) or set at large (ex: 1024x768) resolution.
3. Same as number 2. just it was for video=new Video(w, h) . Is setting a video size affecting the bandwidth ?
4. I just still develop at local, how to test it with a real connection? Could *Stimulate download at Flash test movie test a real connection with FMS?
Thx ..

Hopefully others will jump in here too, but I thought I'd point you to Robert Reinhart's Web Video Bitrate Calculator:
http://www.adobe.com/devnet/video/encoding.html
Look down at the bottom right of that page -- there are links to the calculator and to an article about encoding.
HTH,
Jody

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