I went for after market with DBA's and Ferodo's and did them myself (well the ex did them I watched ) I am very happy with them. A few of the guys on here have done the JCW brake upgrade and have been happy too - just depends what your after and how much you want to spend.
Mine has pretty much the same set up as Karens.
The do the job fine for my driving style( or relative lack of ).
Just make sure your sitting down when they tell how much the backs are compared to the fronts. Great Odins raven!