I've been to many quiet locations and their great for a good quality photo, instead to a bus station shot.
I've been to Low Pittington once, and I'm sure that aureolin has too, and it's a fantastic place for a nice scenic background, and would be fantastic to go to to get some new photos of the indigo solos.
Beamish museum is also good, would recommend a Saturday as the 128 runs.
Garesfield Golf Club, near High Spen
Acomb, for the new Tynedale links services
Anywhere in Morpeth , a fantastic place
Haven't been yet, but Ovington will be a nice place, as will Corbridge in the tight streets!
And finally, Lanchester is a nice place for some photos too
RE: Places for Spotting