Midnight wasn't written by RTD, it was written by Moffat (who is taking over in the new series).
RTD was a great writer and was especially good at leaving us with huge cliffhangers in the penultimate episodes, but the best ones for me (Silence in the Library, Midnight etc) were all written by Moffat.
I think this thread should be moved to lounge tbh, as Delldays seems to have failed in his quest to take the p*ss.