Panasonic DMC-L10 Leica D 14-150 f/3.5-5.6 Vario-Elmar Zoom Lens

For the first time in many years I own no camera or lens from either Canon or Nikon. All my Canon equipment has been sold on ebay and my last two Nikon lenses are now in the possession of my colleague B. I do still have the Panasonic L10 DSLR, though this is currently also for sale on ebay. I was planning to keep it for a while but I've been trying it out in some low light situations and it really isn't very good at high ISO's. Indeed it only goes up to ISO1600 and that is pretty unusable. Though I don't really have a need for a "pro" camera currently, that situation is always liable to change. If the situation arises that I get some work that requires a camera with (relatively) high speed operation, and good low light capability, plus lots of versatility, I can always get my hands on one pretty quickly. However up to now I hadn't the faintest idea what I would choose. 

I looked at samples from the Olympus E5, Pentax K-5, Nikon D7000 and Canon 60D. However I had misgivings about all of them. You may be surprised by what I came up with as a solution.