ray- my LO's could stand up for fairly long periods of time, just holding hands, at about 5 weeks old. I think its just a sign of very strong leg muscles and good weight distribution. What they actually need for independent sitting and standing is to develop the balance centres in the brain. With DD this was just before 5 months. Zach can sit unaided for a few seconds before flinging himself backwards. It may seem sudden but don't worry she won't crawl overnight, they take a few weeks to get used to it so you do have some warning. My DD crawled at 6 months but I don't think she ever really liked it so she was up and cruising round the furniture at 7mths. She didn't walk unaided til 9mths though, as it takes a lot of confidence no matter how strong your legs are!
I could be wrong though, Esme could be the worlds first child to walk at 5 months!!! You never know!
Tree on the tea front I usually drink peppermint as I don't like milk very much. However I have recently been drinking Chamomile and I swear it has a relaxing effect on Zach.
Dog good luck, whatever you decide to do. I'm sure you will make an excellent midwife. If you need any online tutoring to help do your science a-levels then just give me (or Lenni I'm sure) a shout!
Oh, had a look at that other thread mentioned above, I can't believe how rude people are to each other sometimes! Lots more rucks seem to happen on the weaning thread too where I lurked the other day, too scared to post! Why are some people so bothered about what other people (who they don't even know!) feed their kids and when. Some people offer very good advice too and then just get accused of being smug! It's all good fun i'm sure