Private room at restaurant/bar for party

[obie119.livejournal.com]

Hi folks,

I'm looking to host a party for my husband's 40th late next month. I know there's bar/restaurant places in Boston that will let you rent a private room if you make a certain guarantee about the $ spent for the evening. I am looking for a similar deal in Cambridge/Somerville/Arlington in a fun space. Does anyone have any recommendations?

We are not looking for a sit-down meal, but more of a cocktail party vibe. We host at home all the time but want to do something a bit more special. This would be for 25-40 people.

Thanks for your suggestions!
-Karin T