The holy grail is usually the Davis Vantage Pro which is going to run you between $500 and $1000 depending upon options. I assume you aren't that interested in the weather.
A common entry level is something like the Oregon Scientific WMR100 or WMR200.
Check out
Weather Stations at AmbientWeather.com: weather instruments, weather radios, and more for lots of options.
You may also want to check out
WXforum.net - Index and
http://www.weather-watch.com/smf/ (scroll down for the weather station specific forums).
I think that for a decent entry level setup you're probably looking at $200-300, but maybe some of the $100-200 stuff is good enough. It's been a while since I perused.
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa
SOLD 2004 - gone but not forgotten