1) Your timetable is entirely dependent on your course, modules, and year of study. Some people have 4 hours of seminars a week, some people have 15 hours of lectures and 12 hours of laboratory work per week.
2) When applying for accommodation you are asked a series of questions such as: how often do you go out, what time do you normally go to bed, what are your hobbies etc etc. Usually, people are happy with their flatmates, but there ways to move if needs must.
3) Yes there's a limited number of jobs, and yes there are a lot of students, but, if you apply early, and aren't an idiot, you'll more than likely get something.
4) You can loan textbooks from the library, the duration you are allowed to loan it for is dependent on how popular the book is. It is ideal to have your own copy of the textbook so that you always have a copy handy. You can either buy textbooks new (some subjects are more expensive than others), buy them second-hand, or find the materials online.
5) Usually early September - Mid December. Late January - Mid May. We have long Christmas and summer holidays compared to English universities. It is important to note that first semester exams here are sat before Christmas, which means that the Christmas holiday is actually a holiday, and you aren't spending your time revising for January exams. There's also a 1 week break in the first semester, and two weeks for Easter.
6) Something happening every week in the union, just like any other students union.