J.K. got an OBE?

[Ripleywriter at aol.com]

Hi again, 

  I'm doing research for a project on J.K. and HP, and during my research I 
came across this bit of info from scotsman.com:

" JK Rowling has amassed a personal fortune of at least £220 million and 
received an OBE from Prince Charles in March last year. "

Two questions from the Britishly challenged: What's an OBE? And how does £220 
million translate to American dollars?

I'd appreciate any replies!

Melly...who's never had so much fun on a project in her life *g*