hi there... I've got a camera you might like, and it only costs about half of what you're saying you're willing to spend. I use a Panasonic DMC-FZ3. Canon or Nikon snobs won't give it the time of day because it's a Panasonic, but it's got a whole lot of nice features that I'm very very happy with. And as far as quality goes, Leica makes about the best lenses in the world, and this has got one on it.
As far as wildlife photography goes, it's got 12x optical zoom (4x digital, but I'd avoid using that if at all possible) so it works well for getting those long shots. 12x is the 35mm equivalent of a 420mm lens!
I've had quite a few photo sales from stuff produced by this camera. If you want to get a feel for what it can do, check out some of my stuff on here. There are wildlife pictures under my Outdoor album, and these all got resized by Photobucket, so there's actually a fair amount of detail lost on that page... http://photobucket.com/albums/y215/jrh312/
And just for good measure, here are a few of my favorite wildlife ones...




Here's some idea of the detail...take a look on this snapper's nose. That's a mosquito!


