Doctor Who in my dreams...

I had a really vivid dream last night. Basically it was a two-part (yes, I dreamt it in two parts, complete with end credit music!), end of series, Doctor Who cliffhanger type story. It featured the David Tennant version of the Doctor, Billie Piper as Rose, Matt Lucas as a character who was taken over by an alien parasite (a bit like the face-hugger in Alien, but this one clung onto the back of people's heads), a spectral knight on horseback who came crashing through castle doors with alarming regularity and small, sinister, snake-like aliens who were masquerading as flute-like kids' musical instruments. Oh, and lots of laser beams.

I just wish I could remember the whole story - I woke up thinking it was really good.

Hmmm, what does all this tell you about my subconscious?