Hi Patti,
All good tips above. At the risk of tooting my own horn, I covered this in a couple of posts on my blog--I think bezel mounted dichroic cabochons look awesome. Here are the links:
http://www.steveghilliard.com/making...ng-bezel-cups/
http://www.steveghilliard.com/mounti...in-bezel-cups/
I'm far from an expert, but I can't resist writing up what I learn, for myself and others.
Good luck, and beware, silversmithing can be just as addictive (and expensive) as lampworking.
Steve