Our current shop location can not get high speed internet for under $489 a month, which is for 1.5mbps. DSL wouldn't work reliably (768k max), and satellite was a bad joke with 256k speeds.
So Robert and I set up a wireless bridge to use the cable internet from my house. If you saw the terrain, you'd swear it was impossible.
I used my iPhone compass to am the dishes, and it picked up 7mbps immediately, then with some tweaking we hit 25-40 mbps, with a solid 3mbps upload speed. It's hooked into our work network, so I can actually look at all the work computers from home.
If someone wants to try this, I will probably put these up for sale when we move. They are cheap though, about $80 a side.