zed111111,
That is expected in an office tower environment to see tons of access points, because there is alot of open air, and your access points have GREAT receive sensitivity, so they can see alot of things. The main thing to keep in mind is that it only becomes a problem if the signal or energy rom those foreign access points is so strong that it "drowns out" or signficantly conflicts with the signal between your APs and clients.
How many is the maximum simultaneous clients do you have your our wireless network?
How many WLANs are you broadcasting?
Do you have drop broadcast and multicast enabled?