Risa aint bad!
I would recommend to all newbies to leeds a trip to the bottom end of town (as already said you will realise the nite life is quite spread out!).
Here a night could go like this..........Normans, Jakes's Bar (which the leeds guide voted as best bar 05-some debate about this though!) the revolution. Then at like 12+ head to TownHouse (3 floors-differnt music). Thats one night out.......down this end of town theres also Space (for some harder clubbers!) and fudge which is a cool bar.
As a student you may first see the top end of Town......which is all quite similar places I think. Avoid Baja, Creation and Majestics........lots of underage teens. But up here there is a Yates, Bourbons, Risa (as mentioned) Fab Cafe and Carpe Diem (a bit of indie rock). These are all good.
On the headrow (which is like a main street in the city centre) Life Bar and Baby Cream (celeb spot) are nice (little more "trendy" which equals some young business men on work nights out ect"
Hope that gives some of you a lil info...............but remember thats only my view!