I'm looking at either;
Nikon Monarch 800
Busnell Legend Yardage Pro
Leica RF 900

Which would you guys and gals recommend? It has to be waterproof and able to range a deer up to 500 yards. I'm not terribly rich, asking for one from the wife for my birthday. If you know of any hotdeals better than http://theopticzone.com please let me know.

-Power