Thank you Devlyn.
I think I had found most of those threads but a couple I hadn't so very helpful indeed thanks!
Hopefully the surgeons will have a good amount of before and after to show me, although what they say they can do for me personally will be most important.
I did have a consultation about this with Mr. Musgrove in 2005, but didn't proceed as I was finishing university at the time and couldn't afford it really. However it has always nagged me to some degree, and now I'm fortunately in a position where pretty much I can get it done without having to borrow money hopefully.
His advice at the time was that he didn't feel I needed anything drastic and I think he's overall right, although I do believe my jaw could be brought in somewhat, it's the width of it, the angle at the rear isn't actually a problem, but the width with the masseter muscle is, it's probably in proportion to my chin at the moment, but changing one will adversely affect the prominence of the other.
Thanks again,
V