In reply to Flicka:
Castlefield's too far.
For the Northern Quarter, walk towards the main shopping street keeping Picadilly gardens on your left. When you get to Debenhams turn right, this will lead you right into the Northern Quarter. Lots of cool places to eat.
go and search out the best pub in the world. - Bar Fringe.
Lots of good little Indian Cafes.
The Ent