My timetable in university was about 12 hours a week. ok ok, I will admit that is some work - but no means a lot of work - especially considering life since University is now about 38 hours work a week.
Most people went to the lectures, but I got more out of the lectures than most. Many people went to the lectures and f**ked around init, and then spend the next two weeks trying to understand it through books. I went to the lecture, understood what needed to be learnt, in just an hour and spent the next two weeks partying, playing tennis or playing soccer.
I think what I did was work a little throughout the year instead of cramming loads in at the end, and for me it prove very successful. Plus I did things that made the little I did throughout the year more efficient - I developed speed reading skills, improved my memory, I networked well with the markers, picked my modules very wisely, I did high intensity exercise (healthy body healthy mind), I had recorded lectures instead of writing notes and played them over in my sleep, vitamin pills, plenty of fluids every night when partying to avoid dehydration and hang over and things like that. It all paid off.
