Congratulations on getting booked.
We saw Celine's "A New Day" which was a big production show. I believe the new show is more singing that the big theatrics, but I'm sure you will enjoy it.
HERE is a topic on hotels. I would settle down with a coffee as it's quite long, but I think there is some good information there on sites to try. Although the hotel offers have expired, it will give you an idea of possible rates although I think next year will be a little more expensive.
The promo offers for next June won't be out until about Feb/March although there are one or two MGM properties with offers well into next year. Try
http://www.smartervegas.com Sign up for email alerts.
How long are you going for and what is your budget per night? Be aware that Friday and Saturday rates are more than double the Sun-Thurs rates.
What type of shows are you interested in, eg musicals, comedy, magic, etc?
Jersey Boys is a great show as is Terry Fator. He's a ventriloquist, but don't let that put you off as he is very funny. The Cirque du Soleil shows are very popular. There are sometimes good offers on some of the shows which are worth booking in advance. However you can get tickets up to half off at Tix4Tonight or VegasTix4Less.
You can see which shows are available
HERE, but don't book on that site as it is expensive.
Once you have an idea where you want to stay and which shows you fancy post back and I'm sure you will get advice on the best places to book.
luci