Hello I live in a condo building that uses 3 Cisco Catalyst 3550 switches connected to a Comcast router with 100 Mbps download. Currently we regulate bandwidth by providing each user with 3 Mbps download using bandwidth policing on the switches. Even if only two people are active they still only get 3 Mbps download. I would like to set it up so if two people are using they each get 50 Mbps and if four they each get 25 etc.; a sort of 'dynamic qos.' I called Cisco and they recommended the 881-k9 router for our setup to provide dynamic bandwidth regulation. They said it could handle up to 300 users. We have 100 units in the condo building and about 50-75 units using the building Internet. Does anyone disagree with these claims? Have any information that is relevant? Thanks so much for your time and help!