I can recommend K & M Auto-Techniks
They are really friendly, helpful guys. I don't know if they are cheap or expensive but I just had the following done:
New glow plugs
Replace swirl flaps
Replace camshaft sensor
Replace brake fluid
Replace front wishbone bushes
Fix fag lighter
Cost incl. parts & labour was £585
Car was picked up from my office and brought back all clean and shiny.
As I said, they will get my business again as they are good guys regardless of whether that lot was expensive or otherwise.