heh! i just did the donald glaude show here in seattle, with a resolume/v-4 combo. he rocked it, as usual, though i can't offer any advice re: web streaming. pics of the event here:
You need a dedicated computer and a fat i.conn. to do webcasts. Just split the signal to the screen to also go into the webcast server computer with a capture card. Then use yhe windows media streaming server to stream this input. should not be too hard allthough a bit of figuring out