What is your budget and what do you think you want to look at?
Here is a decent article I found that might answer some questions for you.
Buying Binoculars - Animals and Wildlife - About.com
I have several pairs and I rarely use more that the 8 power. Don't get those zoom binos that are in sporting goods stores. They generally aren't that high of quality and it is hard to free hand them above 10x. Using binos in the boat is challenging as the target is moving and the boat may be spinning and bobbing.
When you try out binos, see how they fit in your hands and how does the focus work with your hands. Lighter can be better if you get serious about bird or wildlife viewing.
If you have a big budget, I have been told by some knowledgeable people that HD glass is a waste of money for men. Somehow the cones in our eyes are different than women. But not sure if that is a wives tale or not.
I agree with Elkhaven that expensive binos are nice. It is amazing the detail they can pick up.