The Bausch and Lomb Discoverer 15-60X60mm retails for around $230. It can be connected to an SLR camera with the addition of a T-Mount and the Discoverer Telephoto adapters (cost around $20 each) I have been able to get great pictures from my Discoverer using a Canon EOS Digital Rebel. The only downside is that the Discoverer is rather large and heavy, so it is not really comfortable for any kind of backpacking.
If you want a good scope that is also really small you should look at the Leupold Gold Ring Spotters in either 10-20X40mm or 15-30X40mm (? might be 50mm, I don't recall) Neither will attach to your camera, but are fine scopes nonetheless. I have the former (smaller) one and have been thrilled with it.