Rock Cafe

You'll find the Rock Cafe definitely more rock than cafe, full of a young, laid-back crowd enjoying good music and cheap beer. Once you descend the stairs to the underground level, you'll find room after room, most of them with their own bars. The main stage is where great Czech independent bands play regularly, often for free during the week. Before that, you'll find a room with a labyrinth of seats, from where you can watch the band performing on the main stage on their projection screen, sitting comfortably away from the noise and the crazed fans.

the Rock Cafe look quite a little depressing to me ... still it is downtown so it might be worth a try

saw a really awesome show here last tuesday for FREE! running sushi - great local (i guess) band i've never heard, were really cool and the atmosphere and people were so laid back and cool, not like at shows in the UK where everyone is pretentious as hell. great bar!