Hey icy witch,
Every studio I have worked at has had men who are incredibly respectful of women. I think outside of the industry, the idea that the game industry is a boys club is a bit exaggerated. There have been the very occasional sexist comments from one or two people, but those are so few and far between that I don't even consider it a deterrent to continuing this job. I have had all the opportunities that men have had. If your talent speaks for itself, you should have no issues moving up and being successful. I'm sure there are studios out there that would not be so pleasant to work at...but you have a choice not to work for those companies.
As far as being surrounded by men, it's not been a bad or awkward feeling for me. They treat me so well that I consider them my friends and family. And of course, there's always going to be some females to make friends with. I have made so many incredible friends in this industry, most of them men, and you will find because it's such a tight niche of people, it will feel like a family. We try to support each other all we can when there's the inevitable company wide layoff. We keep networked. We discover a friend of ours knows another friend of ours across the country. It is really a very passion driven industry.
As far as sexual harassment, I'm not quoting anything here, but I'm assuming that you'd be in the same danger of that at any job in any industry. I have not personally had anyone go too far with me. You would go to an HR representative, they are extremely intolerant of that kind of behavior. We are just as professional as any business, that includes upholding human rights.
Do you mind if I ask what industry you're studying for?