Hi mob81, your post could have been by me a month or so ago, I got a digital camera (Sigma DP1) and quickly felt I wanted to go further with photography. Big black plastic SLRs never appealed, so I ended up looking at range finders, and in the end got a Zeiss Ikon and a Nokton lens. I think it's awesome, I enjoy investigating different films and have order lots of different types to try.
I'm just a beginner and would defer to most other people on this forum, but I do think it's worth getting a camera you really like and are proud of, rather than a cheap one which does not push your buttons. I love the way the ZI feels and handles, which makes me want to use it, maybe a scuffed old fixed lens range finder wouldn't quite do that for me.
I'm not saying the advice here to get a cheaper range finder at first is wrong, I'm just saying that for me, and maybe you, having a camera which you love to hold and look at might make you want to "do it justice" and use it more.
All the best
Garry