I actually study in Munich for some years and could've given you a boatload of advice on which club to hit. Now sightseeing and dining is a different matter since well I'm not interested in the former and too poor for the latter. In my opinion tho focus on Sendlinger Tor, Marienplatz, Odeonsplatz up to the University and surroundings for seeing the better part of Munich and having a wide variety of (good) restaurants to choose from.