Here's my recommendations.
Cordelia's Honor by Lois McMaster Bujold. It's a great introduction to the Vordosigan saga. I think those of us who've made the move already will *really* identify with some of the stuff she goes through.
The Serpent's Shadow by Mercedes Lackey. Another fab writer.
And this one is set in London. What more do you want?
Dragonsong by Anne McCaffrey. A classic by one of the Grand Dames of Sci-fi/Fantasy.
Enchantment by Orson Scott Card Haven't read it, looks interesting.
Local Custom by Steve Miller and Sharon Lee Again, haven't read it, looks interesting.
And I shall put them in a poll for you guys.
A few are classics to me by great authors. A few look good. Pick what ya want. I don't go to the library around here (for various reasons) so I went on Amazon.co.uk and all should be available within about 24 hours. So vote!
wench