After what seemed like a lifetime pining after one I finally did it. I'm now the proud owner of a Leica M6 (with no lens).
I'm a little undecided which lens to get going with. Currently it's pretty close between the Zeiss 35mm f2.8 or the Zeiss 28mm f2.8. Both are exceptional lenses. I'm leaning towards the 35mm as I feel the 28mm is a little too wide. Strangely it doesn't seem to be too easy to rent Leica lenses. Hopefully I'll make up my mind soon, get sorted and upload some pictures.
Watch this space!