I've always fancied trying Chester Moor (since Andreos1 suggested it), but never quite got round to it. Just outside of Chester (Northlands) is quite a good place, and there's a decent frequency too. Other than that, I'd suggest perhaps just jumping on a bus for a stop or two outside of the town centre, and see what it's like there?

 There's plenty places in Gateshead. Quayside, Swing Bridge, and the Baltic being the most obvious if you want Quaylink shots. There's also Jackson Street (but I'd have your witts about you there), Low Fell, and various spots up Deckham bank. Near the Riverside Depot isn't bad either, as the traffic flow makes it easy to get good shots.
 Newcastle is a bit of the same, but there's a fair bit opportunity in the City Centre. Especially around New Bridge Street, High Street West, John Dobson Street and Blackett Street. St Mary's Place makes it a bit easier for good shots, with there being traffic control in place at the moment.