Ok, I'll try to help you out, maybe others will follow.
I saw the show for the first time with my sister-in-law, Melissa, in Fort Lauderdale a few months ago, and I was blown away. So much so, that I convinced five of my cousins in New Jersey, who have never even thought about seeing a broadway show, to meet me in New York in April and see it with me.
I was too cheap to buy the soundtrack at the theater, so instead I spent the next few days searching everywhere for it. For all of my effort, I saved a whopping $4.00, what a moron, right?
But in the end it was well worth it, those 2 cds have yet to leave my car's cd player.
Melissa and I felt a little left out at the theater because we felt like the only 2 people there who hadn't already seen it. It's the first show I've been to where I could here the audience singing along like they were at a concert, it was actually kind of moving.
I'm not sure if this is the kind of stuff you're looking for, but feel free to PM me if you need anymore or if you want to ask me specific questions. In fact, maybe you should post some questions and people will feel more comfortable answering.
For the dates that the cast members left, I would try google or their websites, if they have a website, it should have their bio.
Good Luck,
Gina
Finish each day and be done with it. You have done what you could. Some blunders and absurdities no doubt crept in; forget them as soon as you can. Tomorrow is a new day; begin it well and serenely and with too high a spirit to be enbered with your old nonsense. ~ Emerson