I'd be grateful for some guidance: I (we) currently have a Lumix TZ20 compact and a Nikon Coolpix 510. The Lumix is excellent for a compact, offers useful features and is relatively controllable. The Nikon is a disappointment as it often struggles to find focus and lacks control over depth of field. Unfortunately, I know very little about cameras and did not research well enough before wasting money on the Nikon. (Our nearest camera shop that stocks a range is over 2 hours away). We really need to find an affordable camera that suits our needs: 1. No interchangeable lenses or one lens that does it all. I know I'll only ever use one lens. 2. Big zoom range. (Our Nikon has 42x which is a feature I use lots). 3. Large sensor. 4. Full control over depth of field. (i.e. selectable aperture in 'aperture priority' mode). 5. Macro - preferably auto selected as with the Lumix TZ20. 6. Filter thread. I'd like to use UV & polarising filters. 7. GPS. 8. Viewfinder. 9. Screen that hinges both ways. 10. Reasonably compact. We carry the camera around on a push bike. 11. About £400 (and new). Any ideas?