Hi Robbie
Welcome to the site and forum.
I hope you enjoy reading and posting any comments that you may have. Like Dave said, if there's anything you can't find an answer to then you're more than welcome to ask!
If you have any probs on the site then feel free to get in touch with one of the team here: myself, Chris and FiestaRS.
In answer to a couple of your questions, insurance wise again its just a case of spending as much time as possible getting quotes. I've found in the past that confused.com can be pretty good and have used them a couple of times in the past, though bear in mind that there are a few insurers they don't use.
Economy wise, most people including myself get between 29-33 mpg, though some people get more. Obviously it is a little less when driving on the motorway.
Take care
ChrisC (site mod)