I'm looking for wireless recommendations for a small office. The office is about 8000 sq. ft. (40 to 50 users) and is pretty wide open. I'm expecting to go with at least 2 access points. I need these access points to be able to be powered via PoE. We are currently in a stand alone building but moving to a large office complex. At our current location we just use a few consumer grade linksys, (WPA) and on top of that MAC address filtering.
I need the wireless to be on our LAN as well so I need it to be as secure (but fast) as possible. I also need to be able to do multiple SSID's so the same access points can offer guest access as well. We're not tied to any specific vendor and price (within reason) does not really matter.