Live streaming Advice for a Newbie

Hello All,
I have a task before me that I have not spent any time researching in the past because I never thought I would have to do it... I need some specific advice from some of you gurus out there.
I need to set up a training facility in which we film a teacher in HD and broadcast it live across the internet to 30 locations around town. I also need to have a live chat going with the video in which any of the viewers can ask a question to the teacher and he/she can answer it in the lecture being given.
The 30 locations that the viewers will be at will be a board room setting with an HDTV on the wall , and maybe a wireless keyboard and mouse that they can share to chat with the teacher.
I know I can quickly figure out all of the video stuff, like lighting and cameras. I really need advice on all of the technical stuff that it takes for the live broadcast on the internet.
I imagine that I will choose a content delivery network in the Dallas, Texas area, but which one? I imagine that I will use Flash Media Server, but which version? Do I need a real time transoding device to feed the analog HD video signals to to feed it to the computer? The company has T1, is it fast enough on the uploading to get what we need done? Somebody educate me on the subjuct here and help me make the best decisions for the project.
Much appreciated,
Drew

from the information you provided i understood that you want to stream HD content and then want 30 users to simultaneously view that stream in real time and would able to chat in real time with the teacher.
so to do so you can use FMLE.
FMLE is a free software and can stream HD content using Capture cards which can give RAW HD content like Black Magic Intensity Pro, BlackMagic Decklink and Osprey 700.
If DV sizes are OK with you say upto 720x576 then you can use Camcoder directly in FMLE through Firewire capture card which are really cheaper.
FMLE cannot take HDV content because these contents are MPEG 2 encoded and FMLE needs to take RAW input only.
you can publish this steram to FMS.
Free version of FMS can support upto 10 conncetions at a time. if you want more connection then you can go for paid version of FMS or can contatc CDNs like Akamai. Limelight to get their FMS access for streaming. Viewers can subscribe the stream being published by FMLE.
For chat application, you can create one simple app using Share Objects in Action Script. you can get sample apps from net or from adobe developer center.
To get FMS documentation on how to create chat application you can download trial version of FMS from adobe.com with limit of 10 license.

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Hi All - First of all, thanks to everyone who shares their stories and advice on this board. It's a tremendous resource that I could not be happier I've stumbled upon.I've been reading for several days and wanted to see if anyone has advice on my approach My baddies and questions are below: Bank of America - Charged off credit card
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