I too have been looking at rangefinders. I looked at the Nikon 440, Nikon Monarch 800 and the Bushnell Scout. Of these three, I'm going with the Monarch.
My brother has the Leica LRF 800 and it's very nice. The nice thing about the Leica is the readouts are red which really show up in low light conditions. It's pricey though at $500.
Phantom