Having bought the FZ8 hardly 10 days ago, I must say that it is an excellent choice, like payne has been repeatedly saying.. One of the reasons I chose FZ8 over S5 is that the battery is Li ion in the FZ8. Having had the Canon A75 previously, I know how much PITA it is to carry around 4 additional batteries always. The battery in the FZ8 lasts for approx 400 odd shots, and that too with frequent reviewing and manual adjustments.
Picture quality is good, though it does tend to produce noise, but my online research before purchase showed that picture noise was a common occurrence in all ultrazooms. I don't remember where, but some site concluded that the Sony had max picture noise. Cam is lightweight and it has sufficient features to keep you indulged for a long time.. Go for it..! Costed me 13.1K along with 2GB card, at Alfa..