Make sure and take in the freebies as well. The lions at MGM, Bellagio fountains, Mirage volcanos, Treasure Island pirate show. Spend some time on Vegas.com and it gives you a ton of info. Also there is a free tram that runs between Mandaly Bay, Luxor, and Excalibur. If you or your girl wants to shop the shops at Planet Hollywood and Forum Shops at Ceasars are pretty good plus just north of MGM you have M&M store, Coca-Cola store and my favorite, the Addias store. The best pizza anywhere is called Grimaldis. The cook with coal. The pizza takes 4 minutes to cook. Grimaldis was founded in NYC in the early 1900's.
If you want to know any other info please feel free to IM me. I have been there a ton of times and have experienced the good and bad.