There are a lot of reviews out there ... Some are reasonably detailed. Just google 'DMC-LX7 Review' or go to 1001 Noisy Cameras to check out their compilation of reviews. There should be enough there plus real hands on experience by those on the various DP Review forums to guide your decisions.
LXn and RX100 Gallery: http://www.flickr.com/photos/mapleleafbryon/