WHATEVER YOU DO, DO NOT TRY TO HIDE THIS FROM THE FAA. DO NOT LIE, OR OMIT, OR COVER-UP IN ANY WAY.Assuming this is your first and last DUI, even if there's a conviction, you may have a chance.
But if you go through all the trouble and expense of getting the ratings you want, while hoping the FAA doesn't find out about your DUI, and they do at some later date, you will most likely have all your certs yanked, probably
permanently.
The FAA is very sensitive about being lied to... don't upset them. Don't even think about it. Many pilots have lost everything this way... DUIs, criminal convictions, medical conditions, etc, etc. If anyone else besides you knows about it, the FAA may find out. And when they do, they will tear up your certs... mostly because you tried to make them look stupid.

As for the wisest way to reveal it to them... my advice is to consult an aviation attorney, even in an online forum. Or call AOPA; they offer legal advice for pilots.
I'd also recommend you check out this thread on the PoA forums (assuming you're not the same person, LOL):
http://www.pilotsofamerica.com/forum/sh ... hp?t=34318The bottom line is that even if it is thrown out in court, it may still be on record. Sometimes the FAA (or aviation employer, or insurance company) asks "is there a record?" sometimes they ask "were you ever?". Find out what you need to know about the status of this DUI, even when it's "all over".... and
DON'T TRY TO HIDE IT FROM THE FAA.And one more piece of advice: don't drink and drive.