Hello, I'm going to visit Czech Republic in August. I'd like some advices about good hostels in Prague. My intention is to stay in single rooms and I don't want to spend more than 50 euros/day paying the hostel. I visited some websites as www.hostelworld.com but it still difficult to decide where to stay. I'd like something near the main touristic places or at least close to underground stations and so on. I'll spend 4-5 days in Prague, but at least one of them I'll be actually out of the city visiting surrounding towns. If anyone have advices for Vienna and Krakow I'd appreciate them as well. Thank you very much!