omnipotens, wait your "3 day restriction" then use the appropriate forum - i.e. this general discussion one....
The 3 day rule is a small measure against spam, whilst still allowing new members to seek "urgent" BackTrack related help.
My life is this forum
1) Your best bet is to implement WPA Enterprise.
2) Hiding your SSID is a joke as far as security is concerned. Anyone with even mild technical knowledge can find your network.
3) Using MAC ACLs is only slightly better than hiding your SSID.