We have a Sony P5, and IMO it stinks. Worst camera purchase I've ever made. We bought it because of the small size, but you definitely compromise picture quality. Our old Kodak 1.3 MP camera took better pictures than this 3.2 MP Sony.
We are shopping for a new one now, and are leaning towards the Kodak DX7590. My wife's father and sister both have the previous model (DX6490) and love it, and we have been very impressed with the pictures they turn out. We were very happy with our previous Kodak camera, so we thought it would be worth a shot.
There are only 2 things about the camera that bug me - it doesn't have a manual white balance setting, and it doesn't have image stabilization, which could be useful with the 10x optical zoom. I'm sure I can live without the image stabilization (that feature wasn't even available when I was minoring in photography in college), but I wonder if the white balance will be an issue when taking tank shots. The auto white balance on this camera is supposed to be one of the best, so maybe that will work good enough. And there's always Photoshop if it doesn't.
Has anyone here used this camera for reef photography?