Looking for a room (4th of April - end of September)

Hi guys! I'm looking for a room to rent for six month, from the 4th of April to the end of September. My priorities are the following ones: the room should be furnished (or at least partially furnished); the more it is near to the center of the city, the best it is for me, since I'm moving to Jena to study in Friedrich Schiller University. I've got no special request about the price, it can be demanded to a further discussion. So don't be shy, guys, let me see your offers!
P.S.: If you prefer to speak German, just tell me (also if I speak a little better English).