They're certainl...unconventional! Have you tried the BBC radio series? He actually wrote that first - the books were a novelisation of that. This fellow on youtube seems to have the first series up, if you can't buy the CDs over there! [link]
Wow, I had really no idea this would become my most popular piece! Thanks all for your kind comments, I really do appreciate them! I hadn't originally planned to sell it, but it'll go on eBay later tonight for a 99 pence starting price - I'll put the link in the description. Anyone that's faved or commented'll get 10% off the final bid price - seems only fair!