Hello John,
Nice camera. I have handled the M7 and it's a good Leica camera. I have the M5 that I really like a lot and have the 3,5cm through 13,5cm Leica glass to use on it. I also have two FSU Barnack copy cameras and copy Elmar 5cm f3,5 collapsible lenses so I'm set.
BTW this is my first post here as I just joined. Mark Ehlers provided the link. It's nice to see people I know and respect. Mark has an MP and an M3 now as well as several Barnack's. Hello Mark!
Truth be told I am haveing a little trouble recently with getting pictures of a quality that I was able to achieve last year with my FSU gear. So I will be concentrating for a while with using my Leica M5 and it's Leica glass. When I'm conviced that I have remembered how to apply my skills and get decent images again then I will bo back to also using the FSU Barnack copies. Film is to expensive to just waste.
One day if my budget will allow I will own a Leica IIIf. I already have the Summitar and Summaron in LTM and a 28mm f/3.5 Voightlander Color-Skopar and a FSU Turrent finder. I really like Barnack cameras because they are so small and they have no meter. I get a feeling of freedom in not depending on a light meter. This helps me to enjoy photography more. Too bad that this season so far I'm not happy with my photography with these cameras.
Good luck with your M7!!