I just stumbled on this as I was reading today birthdays on Wikipedia (Lucie Arnaz, Alexandra in the West End production of Wtiches is 56 today. Happy Birthday!).
http://en.wikipedia.org/wiki/The_Witches_of_Eastwick_%28musical%29 It is a very detailed synopsis of the West End production. I found the differences between that production and the one at Signature intriguing (especially the exploding tennis ball). It gives you some idea what this show could be when those elements and the songs are re-incorperated in a possible Broadway run.
Also, I listened to some of the London cast recording on Amazon.com. I am buying this immediately! Hearing the man who would go on to play Al Swearengen on Deadwood singing Dance With the Devil is amazing (and ironic) to me. Ian McShane is a great singer, and I must hear the rest of this recording!
Drench yourself in words unspoken. Live your life with arms wide open. Today is where your book begins. The rest is still unwritten.
"Unwritten" Natasha Bedingfield