whitchurch is ok,as is bedminster down or bedminster, avoid knowle west or hartcliffe or witywood ( they arnt bad but the others are better highridge where i live is ok,congresbury will cost u an arm and both legs,or u could look at dundry (more out in the sticks ) or chew valley/magna. more out in the sticks new the lakes.
bishop sutton is the other side of chew valley lake and nice but not sure about public transport from the last ones ,all the others have great transport links.
http://www.thisisbristol.co.uk/
p.s congesbury is about 12-15 miles outside bristol