I first purchased the Sony HDR-CX110, in the same price/feature class as this Panasonic. If you are considering each camera, here's what I can tell you. Be forewarned that I have only had today to play with the Panasonic, and I have only used each model in Automatic mode. I will post updates if I discover anything significant:

SONY HDR-CX110:

Wins:
+Size - the Sony is much smaller, easily fitting into my cargo/tactical pants pockets;
+Image quality - the Sony has much better [on fully auto mode] color and contrast;
+Both an HD and an SD camcorder - Can make AVCHD or MPG, in-camera!;
+10mm Threaded Filter compatible - The Sony has a manual lens cap, and a filter thread on the outside of this. While you won't be able to protect your filter with the cap, you can at least keep your lens protected;
+Manual Lens Cap - User preference, but I like having fewer "automatic" moving parts to break-down.

Looses:
-Image Stabilization - not strong enough for my hand held video needs - I believe the IS on this model is digital only - you can spend a couple hundred $ more for the CX300, which has Optical IS, you might find better IS [out of my price range];
-Artifacts - I noticed several blocks in my video test. I don't know if this was from the digital image stabilization trying to figure out how to handle lake water on a windy day, or something else. I did not notice this in the Panasonic, but have only done limited testing.

Panasonic HDC-SD60:

Wins:
+Lighting - Panasonic SD60 has built-in video light and still flash - these will probably be of limited use, in only close quarters, but there if you need it. In preliminary testing, these both worked fairly well;
+Image Stabilization in this model is optical, and includes two modes - regular, for simple hand-held video, and "active" for filming while moving. Both worked well, much better than the Sony, but will not completely eliminate camera shake.

Looses:
-Size - While still quite small, this camera is large when compared to the Sony [longer and heavier]. I probably won't be carrying it in my cargo/tactical pants;
-Automatic Scene Mode - It takes much too long for the camera to adjust to lighting conditions, and it cannot seem to find the right color temperature for indoor lighting - I have not played with manual mode, yet, but many reviewers write that the manual mode is much better;
-No SD mode - only writes AVCHD files;
-Automatic Lens Cap - User preference, but this seems to be another piece to breakdown;
-No Filter Threads - Can this really cost much to implement? I can't install a polarizer, UV or any other filter to enhance my video or to protect the lens.

Conclusion:
I tried the Sony first, because of the ability to change it from an HD to an SD camcorder at the push of a button - Writing either AVCHD, or Standard-Def .MPG files, when appropriate. After I discovered that the Sony IS was limited in its ability, I returned the Sony for the Panasonic. The Panasonic's IS is much better, but the Sony does seem to have much better image quality [Automatic modes tested, only!].

Overall, I'd choose the Sony, but only if using a tripod most of the time. I'll keep the Panasonic for hand-held videoing.