here's the opinion: http://www.alliancealert.org/2010/20100708.pdf
short version... DOMA is an improper interference with a state's right to define marriage.
I've always thought it was an unconstitutional carve out of the Full Faith and Credit clause. I've been of the opinion that a statute is insufficient and it requires an amendment. However, I'm fully preparted to accept I could be wrong on that one. But for now, no matter.