@cmb:
Just use an external AP, you can generally place it in a more optimal location for coverage that way, and the cost is generally no different.
The thing is I need it to be a mini switch, as well. But the good news is I found this nice used appliance, with everything preloaded for $70. It should be a fine pfBlocker box, and I can use use my wireless router to do the rest.
So I'm a happy camper. :) Thanks!