The opposing arguments in this thread don't make sense.
There are already gays serving and showering with straight men. Removing DADT won't change anything. It doesn't mean that suddenly all gays in the military will be coming out of the closet, and putting their sexuality down on the record. Many will remain in the closet. It's no one's damn business. And if they do come out, then man up, and live with it.
Comparing the separation of men and women to the separation of gays and straights is stupid. In co-ed situations, men are the more predatory the vast majority of the time, which is why women get their separate housing. Do you seriously think one woman is going to feel comfortable among a dozen or so men, especially given the conservative nature of the military?
Likewise, do you really think a gay man is going to jump you in the shower, in the military... or that they are going to rape you? First of all, they are surrounded by homophobes who will probably kick their asses; second, why would they? They are there to serve their country like you are.
Grow a pair and stop making up fantasy situations where it's going to be a problem. It's not going to be. This is less about forcing gays to be out in the military and more to do with them being dismissed from service because the truth about their sexuality accidentally came out. That is a travesty. There have already been stories about men with years of good service behind them being discharged over it.
This makes me think about men I met in the far East who always took the actions of their wives as reflections of their personal honor. Stop blaming other people for how you feel, and deal with your own immature feelings.