If you're interested in rangefinders because of the compact size/weight and the amazing wideangles, consider the Contax G1.
It's an autofocus rangefinder, with aperture priority and good magnesium body.
The main attraction are the Zeiss lenses, which are stunning in performance.
And the best part is, the system can be had for cheap.
~450 for the body *and* a lens.
The lenses go for ~300$ for the usual ones (28mm, 45mm, 90mm, that last one a bit less).
Even extremes like the 21mm f/2.8 Biogon cost no more than 600-700$.
Just google it to see samples of the image quality.
If you're ok with the electronics, it's an amazing little camera, great value for money, and very suited for travel.