If you go to Shuttleworth, I can recommend "the Green Man Inn", its a pub/restaurant that also provide Bed and Breakfast.
Its brilliantly quiet, the staff and regulars are really friendly, the food is nice and the bar is warm and relaxing! The only downside is that they don't have WiFi, so you can't get onto bristol unless you have some sort of mobile broadband, although there are ways of getting around that, and i believe Shuttleworth college has WiFi.
Oh and its 5 minutes from the college, chock to chock!
(Edited to add the website!)
Green Man Stanford