Congratulations fellow traveldreamer! Yeah...so happy for you!
I went in 1995 and stayed for 10 days at the Luxor! We saw Siegfried and Roy! EFX with Michael Crawford, went to Caesar's Palace, and the Excalibur for a medieval times show with horses.
We took a bus tour to Hoover Dam and went inside the dam and ate a "Dam Dog"! (hot dog)
Tip...
Wear lots of sunscreen! I had sun poisoning from the hot sun!
Bring a good hat, and stay indoors during the hot hours.
I never went, but they redid the older part of Vegas, and heard it is a good spot to see.
MGM was a good casino and we enjoyed it there as well.
Stay away from the one armed bandits! I love the roulette wheel!
The Luxor had a wonderful Polynesian restaurant that was divine. Steak with a Polynesian sauce...YUM!
They had a King Tut tour which was a water ride in the hotel. They have the best elevators at an angle. The pyramid at night is a stunning backdrop for photo memories.
You will have to check out trip advisor Vegas and read real reviews that are current to help you choose what to do!

TD