My advice is to go to a building society rather than a bank as they generally have better relationships with their customers, in my view. You should also avoid those who give out freebies, or at least don't allow the freebie to sway your decision as the better organisations don't need to "buy" customers but it's the only way that the bad ones get customers.
You should firstly look for an account with zero fees. Some accounts offer great interest (or low interest on overdrafts) but then take it back with monthly fees.
As to whether you will need to borrow money it all depends how frugal you can be, what help is coming from parents and, more than anything, on what area you are going to live in. In some parts of the country you can rent a 2 bed terrace house within cycling distance of uni for £300 (plus bills) per month. In London, things are much more expensive. Your university or students union should advise regarding the accommodation situation.
You should certainly look at borrowing from the Students Loan Company before approaching a bank or building society for finance as their loans are at subsidised interest rates and favourable repayment terms. Again, your students union will have all the details. If you anticipate the need for finance, you should consider applying for the maximum each year. The web site is www.slc.co.uk. Taking out commercial finance can lead to problems and it should be avoided if there are other options.