Wiz, if you want to eliminate mosquitos, put a few bat houses in your yard. When I worked at a campground during college summers, we often talked about why the mosquitoes were so few there. After a trip to the library we knew that it was because of the dense bat population in the surrounding woods.

Several of my friends have them and swear by it.

http://www.eparks.org/wildlife_prote.../bat_house.asp