breezecom is crap. I've worked with their stuff for years, and have ditched them for far cheaper lucent,cisco,linksys,d-link, etc.

edit note.. the DS11 breezecom gear does not support ANY kind of WEP.. even tho WEP is somewhat useless, you figure a $1500 AP to support it.

I've been working on plans to setup long range wireless equipment on a 20 story building where our ham club has access. I am currently planing to use linux based HostAP drivers, and 200mw wireless cards to provide a high power base station. This combined with sectorized antennas would allow us to cover long distance point to multi-point. One of the major factors in our testing was because of the height of the tower, we were getting a very high noise floor from all the 2.4ghz stuff in town... cordless phones, existing wifi, etc. Using sector antennas, we can cut out the noise recived by each radio.

a couple of sites to visit:
http://www.demarctech.com
http://www.fab-corp.com
http://www.seattlewireless.com
http://www.tcwug.org

see the Moos tower survey on the tcwug website.