You are going to love it there!
My boyfriend and I went there on may, we planned to stay 3 days, but ended up staying 3 weeks. We stayed in the Golden Nugget (nice, but in downtown area, away from the strip) Excalibur (nhe... nothing special, HORRIBLE BUFFET DONT WASTE YOUR TIME) Luxor (nice, good rooms, don't go to the pool,too much people, too 'lil space) and finally MGM (loved it, the lions are adorable, kill to have to job of the guy that plays with them)
as for shows, carrot top is funny, zumanity is amazing, in the luxor there is an IMAX, Ive never been to one before, its so cool! Don't go to the Imax rides...
Gained 2 kg from the seafood buffet at RIO, (I have no idea why the hotel is called RIO, no resemblance to Rio de Janeiro) ..
Be prepared for tipping, for seeing prostitutes, beggars, people trying to sell you their cd, being offered free show tickets, waiting in line, drinking...
There is also the lack of humidity, I like it because it does wonders to my hair
but it can get to you, I asked for a humidifier in my room, and got it free of charge..
Good luck in your trip, let me know if you need anything