I would not recommend going to an agency as they will charge you instead of the landlord which is the opposite way we do things in the uk !!!!!!. There are lots of flats for rent privatly, i was in Wroclaw last weekend, stayed with some people who i never met before and 1 of them deals in rentals, iwill try to get his number for you.
Oh, thank you every one so much! Although I have travelled a lot and have a bicultural background, I am so clueless cause I know nothing of Poland. Well, first hand at least..
But so far I have to say that all the flats I've found on the Internet are so fancy! I do not really need such a flat. A bit more modest (cheaper) option would be better..
How do you think it will be with a dog? Is it difficult to find a flat where they allow pets?