ves - thanks for the posts, i was going to say more or less what doc said about the lady in the library. she said he wasn't her dr and he looked young. The way i thought she said it was that he looked young in re-incarnations as opposed to physical age.
I don't think we will ever get to see that story though as its too much romance, most fans don;t want to see him married, and from what she said they were together a while, so if they did i bet its at the very very end (although whether there will be a very very end is a whole different converations)
i loved the cactus people and as you said crazy aliens and camp effects. i thought it worked brilliantly as when they were rescueing him you could tell their heart wasn't it - bloody hilarious though. worst rescue ever:wtf::wtf::wtf: