Streaming Media Forums

I am looking at producing a Live Stream of a multi-day event. This event will run simultaneously at two different locations across the country. We want to have large projection video at each location providing live Video from the other location. Then we want to provide this on the web as well and would want to select which location is being displayed on the web stream.

I have looked at Light Cast and Livestream as well as others... and feel one or all of these would do the online stream. My big issue is providing a high quality stream between the two locations at the best quality possible and have no delay.

Then at the same time keeping the budget reasonable.

thanks in advance,
-justin