I was doing my morning meander through the internet and visited one of the blogs that I had bookmarked. "Steam & Ink" is the blog for author Charlotte Jane Ivory who writes Victorian Gothic thrillers. She recently guest wrote a very interesting post on questions to ask a potential agent. As mentioned, when you get the call for representation (especially after all those rejections), your immediate answer is "absolutely!"
But hold on there cowboy--it is extremely important to know what you are getting into. So before you sign on the dotted line, or in some cases give the verbal go-ahead, check out this post.