The Great North Road shop has a wide range of gear for amateur and professional photographers and movie/video-makers, but the thing I like is that they provide prompt in-house processing of colour film and transparencies. For those who use film (and it's supposedly making a bit of a come-back), colour developing and printing has become hard to find. They also have chemicals for DIY black and white processing.
Serious store this one, every kind of equipment and accessory you could need. Store itself is nicely laid out, spacious and light-filled. Staff are super-knowledgeable and helpful as well, making this a great shopping experience.