Looking for a room in Barcelona from MID APRIL 2013 for 4 month

Hey,

I am Carina, 23, from Germany. Currently I am studying in Ireland and as a part of my studies I will complete my internship in Barcelona.It will start a the 22nd of April and end in mid August 2013. But I won't mind moving in a bit earlier to get to know Barcelona, since unfortunately i have never been there before.

I am a very respectful, sociable and out going person who likes to travel, cook, sports, etc. Since 3 years I have been constantly living in a shared apartment (from 2 to 8 people).

What I am looking for is a simple room which should have good public transport facilities and preferably furnished. More than that, it should not cost more than 400€ per month bills included.
I would be very happy if the language spoken in the apartment is Spanish, but since I speak German, English, Spanish and French I am happy to move either way.

I am looking forward to meet you :)

Greetings from Dublin,
Carina