Proxim adds 802.11a to its point-to-point and long-haul portfolio: The Tsunami MP.11a uses plain old 802.11a to run what they claim is up to 30 Mbps of real throughput out of the 54 Mbps standard. You can also bond channels together to boost bandwidth. The base station unit is $1,295 and can support up to 100 subscriber units. They have a business subscriber system for $695 which will handle multiple antennas, or a residential subscriber unit for $495 for a single antenna, including an "indoor" style one that mounts in a window with a self-install -- if the subscriber has line of sight!