Don't know those specific models, but the Lumix tends to not perform as well as similar Canon and Fujis overall in darkness/higher ISOs (800 and sometimes 400). Crisp, and saturated, but grainy. A couple of the Fujis tends to excel. The F200EXR for instance has a ISO 6400 at 6MP resolution & 12800 at 3MP resolution modes. Review here.
And Grahame answered the Eye-Fi, but quick uploads from any wifi location to Facebook, Flickr, Picasa, Shutterfly, etc. is a hugh plus in my book. Almost like a phone camera.