Anything BUT the Sun/Moon Wireless Weather Station... set me back $200 and after using it for a year, I can safely say it isn't worth a quarter of that (and arguably not a quarter itself). Very fancy LCD display with atomic clock sensor, but otherwise useless.
Last week, dendrite at WWBB recommended
http://www.provantage.com as a retailer for weather stations... you can get Davis stations for quite cheap there. I am thinking about looking into a Vantage Pro station, but am hesitant because I live in a townhouse and the logistics of setting up the anemometer would be challenging.