I wouldn't mind a sideline in doing 'diets' for people - I could make a fortune!! 
I love studying nutrition - the idea that the physical condition can be so improved (or damaged as the case may be...) by what we eat is amazing. Well, to me, anyway.
I'd always planned on training as a gym instructor - my local gym does a weight management class and I fancied having a go at that. Don't think my knees would stand up to it though
The gym instructor bit that is... 
NHS appointments can take ages, can't they? I waited 6 months for my physio appointment. Wish I could go private! It'll be interested to know what the MRI shows.
I've just been to see one of my university physios - nowt he can do about my knee alignment, but I've been given exercises to do that will help to realign my patella. From my understanding, if the strength in the quads is not evenly distributed (as the fizz seems to think is the case) then the patella can be pulled 'off-track'. If you're knock-kneed anyway, then this just makes things worse. Every little helps, I guess.
I was also told that orthotics will definitely help. Just have to wait for the podiatry appointment now... 
Do you over-pronate? I find that if I wear my mizuno my knees feel much better for it. Just goes to show that the orthotics will work 