I think it's more a case that American Equity don't allow Brits to come to Broadway so easily. It's all moot in Laura Michelle's case as she is definitely not doing the show on Broadway. Gavin Lee is, as far as I know, still with the show in London and is signed on until September of 2006, so if both sides agreed to it, it's feasible that Gavin Lee could be in the show on Broadway.
Nothing precious, plain to see, don't make a fuss over me. Not loud, not soft, but somewhere inbetween. Say sorry, just let it be the word you mean.