Monthly budget - Berlin

Evening,

I'm faced with the possibility of studying in Berlin for one year next autumn. I am wondering as to the basic living costs in the German capital. As far as I'm concerned, Berlin is a relatively cheap city when it comes to rent. What about other living expenses?

My monthly budget will be around 1400 € and this has to cover all needs; rent, amenities, food and other expenses.

Thank you in advance for all help!

Kaspar

Oh, and how hard is it rent a decent apartment in Berlin?

I've checked on sites like immobilienscout24.de and there seems to be plenty...?