I would suggest first typing everything up, how the accident happened, how many field sobriety tests you underwent, exactly how you messed up on the test, what you blew, who was at fault, etc. Reason for this is so you can give each lawyer you interview the same information in the begining. Set aside a day so you can interview 5 or more lawyers. Also have a goal in mind, be it going to trial and being found guilty, accepting a plea of 10 days in jail, whatever. Just have a clear picture of what you want the lawyer to accomplish for you prior to seeing them. DO NOT let the deciding factor on choosing a lawyer be price. Just because one may charge twice as much as the rest doesn't mean they will be able to get you off, nor just because someone charges less than the others mean they are lousy. N E way, having everything written down comes into play when you start interviewing lawyers. Even though I may think you have a winnable cause and even though you think you could win, neither one of us are lawyers. You may find out after present each of them with the same information that 4 out of 5 may say it's a unwinnable case and you should take a plea of ____? When interviewing them, ask very specific questions. If they say it's a winnable case, ask them how they would get you off. How did the get others off in similar situations, etc. Remember, it's YOUR $$$ that you are spending. If your gut feeling says get up and walk out now, do just that and move on to the next lawyer.
Hope this helps