Wireless cams

I am starting a service using live webcams. The operators communicate live with 2 international sites with 2 way communication. I obtained a Dataflex 10 gig wireless modem which we started using on 2 p.c's. I would like to go up to 10 computors. The Data flex is supposed to be capable of supporting 4 networked p.c's and 6 wireless laptops. I thought of putting wireless cards into 6 standard p.c's or alternately connecting through a hub. My biggest question is however, whether or not, the dataflex can support 10 webcams used in this way ?. Will it slow down or lock etc.? If not, what is the maximum it can support? I am using pentium 4's with 2 screens each. Will there sufficient broadband ? . We had a scare the other day when an error message was displayed saying a USB device was using too much broadband. I found that a scanner, printer, copier, was left connected after use. Otherwise what else can the members recommend as a speedy smooth solution to my problem?