Hey Graham, sorry to hear ya feeling a bit isolated i get like that too, I live 10min from the city, but adelaide isnt a huge place small country town cheers take care OJ
I just went to UK for the first time at the end of last year. I had to go to London for a week for work. It was pretty nice. We rented a Mondeo and did the whole driving on the "wrong" side of the road/car thing. I was better than my buddy. When it was his turn to drive he kept hitting the curbs and bushes (my side!). Everyone there was really nice. I swear though you guys don't speak "English" though. Between the accents and the unique words, it may as well have been another language sometimes! I had to ask how come I was a "mate" sometimes and sometimes a "chap".
Overall, it would be fun to go back sometime for a vacation! We did see a Castle and downtown London while there too on our off time.