Venues for organizing festivities in Bucharest

Dear InterNations colleagues from Bucharest,

Next year I'll be organizing a social meeting in Bucharest for foreigners interested in the Romanian language and culture.
The meeting will take place sometime in the spring or summer of Protected content .
At the moment I am trying to set up an agenda for the event, as well as look for a venue for the party that will take place at the end of the event.
The ideal venue needs to be able to host 30 to 50 people, situated in a nice area, easily reachable by car.
Any tips or suggestions would be very much appreciated.

Thanks ever so much,

Anca