One of the things I like in OS X is the ability to highlight a piece of text in any application and search for it using Google. Using Automator it's very easy to create a new Services and add similar functionality of our own. I have created a service that will allow you to search using Bing. Simply download my service and extract the contents of the zip file to your ~/Library/Services folder.

The screenshot shows an example of using my "Search with Bin" service. All you have to do is highlight the text you wish to search for and then select "Search with Bing". The search results will then open in your default web browser.