If you go to OATS, then there is a local economy booming in B & B's set up just for OATS. It will cost you between 10 and 17 quid a nite, for this princlie sum you will get B&B plus evening meal plus all laundry.
The commute is hell, don't bother, plus the work load is massive for the groundschool, so you will need all the time you can get to study!
Good luck