Another excellent narrator with a British accent is Karen Savage. She has read many complete works by Jane Austen and E. Nesbit, among other titles, and is as good as any professional voice actor:

  - 'Pride and Prejudice' (Austen)
  - 'Sense and Sensibility' (Austen)
  - 'The Story of the Treasure Seekers' (Nesbit)
  - 'The Railway Children' (Nesbit)
  - many others (says 141 total matches)

http://www.karenrsavage.com/blog/