PVI is who you want to look at Ernie.
They have a lot of different modulators to choose from in every type of configuration and standard in the world - including IPTV streaming.
Large installations they have the new mini-blade rack units, and a new 1U rack unit that can do 24 HD channels.
5 year warranty. And pricing that is very competitive as well.

I use to get dealer cost with them. But for some reason they will not give me dealer pricing anymore. I'm not sure if it is because I need to do a certain volume with them or if they just don't do dealer pricing anymore. I have not been able to talk to anyone there when I've tried to communicate. But then I have bad luck with that kind of thing.

http://www.provideoinstruments.com/