Actually, although I own a variety of Leica's, I suggest a Bessa R as a first interchangeable lens rangefinder. For about $200 used it's a damn straight foward, powerful little film camera and less expensive than most Leica bodies. It has first rate brightline finders too and it's a piece of cake to load and use. It's also lightweight and holds it's resale value very well (especially since they recently stopped making it!).

I've found the best Voigtlander dealer is Photo Village in New York (great customer service and the best prices).