Since I believe that every person seeking home financing is unique and has his/her individual preferences, I'm never convinced that one person (your agent's referral, for example) can be right for everyone. Human (and financial) relations don't really work that way.
My advice for finding a broker is to ask several of your peers who they have used in the past and if they had a GREAT experience with that person. If you have no first-hand referral options, then perhaps next would be a banking relationship that you already trust, like your credit union.
I think you're doing yourself a great service by using Trulia too. Maybe you don't realize it yet, but by opening up and asking for help you may just identify a number of qualified people who speak your language and are interested in earning your business. Once you have several options, you can then begin to confidently compare rates and costs, which should also be very important in your choice.
I am in home financing and am happy to help, so let me know if there's any way I can be of service as you do your research. Feel free to check out my references below and call or e-mail any time.
Mortgage Master Inc.