Well, best of luck with it mate. Work hard, enjoy it and see what happens.
Seven minute miles, eh; I'd be happy to get mine under ten minutes.
I might join my local running club soon as well, but it's far too late for me to start getting any 'high ambitions' - now, if I'd had this interest in running and fitness as a teenager...
So if any opportunities come your way, grab them with both hands! 