The average rent price per week of an apartment in Poland (Warsaw)

Hi,
I'm thinking of moving to Poland (specifically Warsaw) for 6 months just to travel and maybe study, and was just wondering what is the average rent price per week of an apartment. Thats like a well off apartment like a 3/5 stars.
Also which is University in Poland has the best reputation for a good business department?

Thank you for all replies!!!!!

I cant really answer your first question other than that the rent prices in warsaw is relativly high.

On the second question. Im on my first year of a BBA at Leon Kozminski Academy of Entrepreneurship and Management. After what i hear its one of the best business schools in Poland. its private though so you would have to pay a tuition fee. They do have classes in English though, which is a big advantage for me who doesnt speak polish;)

Heres their website: wspiz.edu.pl/index.php/en/

look on mamdom.com gives you some idea of rental prices in warsaw ..