I got the new Panasonic DMC-TZ5. My requirements were at least a 6X zoom (but wanted 10X) and also wanted to be able to take pictures quickly. My old Olympus digital was the SLOWEST camera I ever had. I missed so many shots with that thing, I hated it. It made me want to go back to my old film camera.
My new Panasonic is pretty fast and has a lot of great features (many which I haven't used yet) but including a 10X optical zoom which I love. It also has a fairly wide angle lens setting that was very handy at WDW when wanting to get the shot without having to move so far back.
Also, it's pretty small for a camera with that size zoom but not as small as those tiny 3X zoom cameras. I really did a lot of searching and reading reviews and was down to either this camera or a Canon. I'm glad I got this one. It also has a movie mode that came in handy at Disney.
The Panasonic has a rechargeable battery that easily lasted all day for my purposes. If you use the picture review feature, it seems to eat the battery so I avoided that. I will look into getting a second battery for my next trip so I don't have to worry about that.
As far as speed, it is fairly quick when not using the flash. I had no problems getting all of the pictures I wanted. When using the flash, it is a bit slower and I had to wait a couple seconds but still nothing like my SLOW Olympus, but still not as fast as my old film camera. My understanding is that the only way to get really fast digital camera is to get a Digital SLR, which are not small and not what I wanted (as I wanted a point and shoot).