How much bandwidth are they calling for?
I personally have Comcast business. I'm on the 22M/5M package with 1 static IP. I pay $121/month. It's pretty cheap for what you get.
For $221 a month you can get 50M/10M ----> That is really what you shuld be shooting for! Not so much the 50M down (although that is NICE), but the 10M up helps!
Depending on the bandwidth requirements, I might be able to help you out. I've been wanting to upgrade to the 50M/10M package but don't have enough subscribers to do it cost wise. I can probably work out a deal for HALF the cost of doing it yourself AND give you your own server that you can manage yourself!
Call me on my cell (630)-300-8877, we'll talk a little!
I got numbers all worked out and can EASILY make this happen!