The Panasonic Lumix DMC-ZS20's 20x zoom lens might be the main attraction, but the camera is all-around excellent.
The Panasonic Lumix DMC-ZS8 is a fine compact megazoom, if not the best value.
If you just want a decent compact megazoom, the Panasonic Lumix DMC-ZS5 is one of the better options thanks to a well-rounded feature set and very good photo quality at lower ISOs.
A very good, fully loaded compact megazoom, the Panasonic Lumix DMC-ZS7 offers a lot of shooting flexibility and a built-in GPS.
With a flexible lens in a pocketable package, the Panasonic Lumix DMC-ZS1 is a pleasing point-and-shoot megazoom--both in design and photo quality.
As long as you don't want much in the way of manual features, the Panasonic Lumix DMC-ZS3 is a very nice camera that can handle a variety of shooting situations.