Since you're a "first time" buyer - I have to offer a few nuggets of advice, regarding some of these posts. Most of the agents who responded below, seem sincere, but I see two problem trends to be wary of that could impact you without you even knowing it:
1. Agents who claim they are # 1, or the Best in the Market, or their firm is the greatest, etc, etc, are to be taken with a grain of salt. Even if their sales numbers are in fact #1 - that does not show how their seller faired or how that will make them a great buyers agent. Make any agent you hire as a Buyers Agent prove how they are the best option for you as your buyers representative - how their experience and extra services (if any) make them the no-brainer clear winner for you. If they can't distinguish themselves in meaningful ways - keep looking.
2. If any local or distant agent chimes in to refer an agent, or offers to refer an agent to you in the market you're already in - RUN, and do not take their advice or recommendation. Why? That local or distant agent doesn't work the market you are looking in, but is simply using you as a lead and trying to get a referral fee. That means the agent they referred to you will pay them around 30% of their commission, for the referral. Since the agent doing the referring is being paid a fee, is their advice really unbiased and trustworthy? Regardless, is the agent being referred really that great? Its easy to find out - blow past the numbers and designations and ask a simple question - what can you do for me that 1000 other agents can't? And from a common sense perspective - who is going to work harder for you - an agent getting 100% of their Buyers Agent commission, or one getting only 70%?
There are some important considerations when choosing your Buyers Broker - the most important is what they can do for you as the buyer. Do your own research and interviews, it costs you nothing, doesn't impact your future buyers agents income, and there is no possibility of a conflict of interest.