It's not a DSLR, but we've had really good luck with our Sony super-zoom for the past few years. Ours is a few years older and only a 30x optical zoom, but I would think something like this would work well for you:
http://store.sony.com/sony-high-zoom...Series-Cameras
The lenses on those Sony's are pretty damn good for a point and shoot, and it takes very very good video for a camera. Speed is nice and focuses quickly in auto mode. That one I linked above also has a shoe for an external flash which may be useful in some situations. One of the things I liked about that camera is that it has a view-finder (electronic - but better than nothing), as I shoot on snow and in bright sun a bit, so have a hard time seeing the LCD at times on cameras. I also like the larger size, as it makes it a hell of a lot easier to keep a grip and get steady shots. Also has a good burst setting (something like 10 frames in a second at the fastest setting), but takes a little while to load all those pictures after a burst, as opposed to a DSLR where you'd just keep shooting.