I need some advice from guys already living in the Boston area...

I was just accepted to an MBA program starting in the fall in Boston and I'll be moving this summer.

1.) Where is a good place to live for a mid-20's gay guy? I'd like something affordable but realistically I know Boston is expensive. Does Boston have a gay'borhood like Chicago and San Francisco?

2.) Cost of living? How affordable is it compared to other cities?

3.) Does anyone know of any gay sports teams in the area that I could join?

4.) Is the gay community pretty friendly? Open to making new friends? I won't know anyone in the city so I could use some friends.

5.) Any other tips for a newbie to the area?