Sooo... someone in the know, whats the deal? Do I have to get one? I've been reading up on it a bit - I will be using health services/doctors/specialists while in the UK. Is this like the Australian equalivent of Medicare?

Also, How does it work with getting private health insurance? I have the highest level of cover over in Australia, and due to my various medical conditions I think it's something I'm going to have to keep up my entire life. Any suggestions?

Finally, is the "National Insurance number" the same as a "National Health Service Number" that a GP can give you?

Cheers,
~Kat