Kosh: I'm against fraternization between people in the same unit, period.
On the far more important aspect of integration, the troubles with establishing unit cohesion, I believe that's something training needs to address. A unit needs to train, and operate until there's no colour, or gender divisions. The men and women in your unit are not 'just' men and women, they're your brothers and sisters, and you need to operate as such. I'm not a soldier, but the doco details this as being the key issue.
For the moment though, I think we should try getting women into a normal infantry battalion, before we try spec ops. It'll be hard at first, but so was allowing women into Fast-Jets in America, if I recall. (We've never had any female FJ pilots in Australia... Yet.)