[jeffasinger]

Not the OP, but the people I've seen this do it DIY have all done it with Ubiquiti products. A single link can get a mile of range with clear LoS. Depending on how far out you are, that lets you connect to a "real" internet connection for cheap.

[KozmoNau7]

Mikrotik products are very popular among people running WISPs, and their product range reflects this, with a whole range designed specifically for that purpose.

Even their standard wall/ceiling-mount AP is weatherproof and comes with pole mount attachments.