Prague is a great place to be during the summer, beautiful architecture and the women and beer are pretty tasty
I was toying with the idea of moving their myself a while back, the apartments in 'downtown' Prague I was looking at renting were quite expensive compared to what you get here, I think the prices have gone up quite a bit lately becuase Prague is pretty big place now for filming movies.
I had a few urls for apartment rentals websites, I'll see if I can dig them up.