Media for Is my neighbour too far away to wirelessly network with?

Is my neighbour too far away to wirelessly network with?

I have a neighbour 3 houses away (about 150 meters - around 450 feet). Is there any chance in heck that I will be able to establish an 802.11b connection with his house without going all crazy with the external parabolic antennae? Am I dreaming by thinking that maybe a small internal antenna on his end will be enough to allow him to connect to my AP?

We have a clear line of sight between our houses, and only my external wall and his external wall between my AP and his computer. Would that help?

Thanks Tim