Recently got a Panasonic GS65 series cameras myself (was more concerned about the 3CCDs rather than still Image MegaPixel numbers, didn;t relaize about the lens till it was too late). It's first "real night out" will be this weekend, and I'll chime back in afterwards with some feedback. But I did take it out for a bit of a test run last week. It handled the low-light/spotlight a LOT better than the old consumer grade Canon I was previously using. Where the Canon would produce a very grainy image in odd light situations, the Pasnasonic was VERY clean.
Since I took it out on a test run and wasn't planning on using the footage, I may have visited the bar more than I should have. Taped the opening band, changed the tape for the headliner. About 5 minutes into their set, the crowd finaly showed up and I broke down and moved back to the bar. Somehow I misplaced the first tape, so I only had a few minutes of footage to go back and watch. I eventually found the first tape in the washing machine a couple of days ago!!!! It's been drying out, and with any luck it'll be OK. I'll take a look at it tonight and be back here tomorrow.