Personally, I don't see anything wrong with DADT. Given that it is such a controversial issue (gay rights), I feel that it is not harmful to have a policy where you simply don't disclose your sexual preference in the military. Our military personnel should focus on their job exclusively and not be concerned about whether someone is homosexual or not - again, since people are divided on this issue.
I am all for gay rights, I voted against prop. 8, and I did not vote for McCain, but I don't see anything wrong with DADT. Perhaps someone can let me know what the arguments against it are?