Streaming Media Server on Windows 2003 Server for broadcasting live TV channel

[EagleCom]

I work for a local cable company in which we produce our own local cable channel that airs local sports, and news events. We are wanting to stream this channel online as well, but I am running into a few issues. We are wanting to use Win. 2k3 on a IBM 7989 AC1 server. The issue I am running into is finding a card that actually works. I have tried a couple different cards already, and either I can't record or I can't get Windows to see the card, and the drivers don't work. I have also tried MythBuntu but I run into the same problem. Does anyone out there know of any cards that will actually work so that I can take the live feed, encode it and turn around and stream it to our website. Any help would be greatly appreciated....I am getting much more gray hair because of this then I should be at this age. Thanks