If its your first year at Leeds, then you'll be spending a significant amount the first week!
Remember that you'll probably make a few mistakes in where you go, crap places that you pay £10 to get in, then leave straight away!
Definitely get in touch with people you know in leeds to find the good places: heres my view (IMO Leeds is good, but sometimes takes itself much too seriously!)
Wire for scenesters but good music/
Call Lane(a street of bars) which is relaxed and cool.
Leeds Uni to meet fellow freshers altho this is rubbish after the first week
Greek Street (if your nursing a trust fund or a business school student?)
Cockpit for singalong indie...more scenesters/media students in check shirts
Manchester (a lot cheaper...only a trainride away, although you wont really make many friends lol)