You have to go to Battistas hole in the wall, it is a little Italian restaurant behind Bills and adjacent to Bally's awesome food and all you can drink wine, your choice of red or white.
Aria is the best hotel/casino on the strip IMO, great atmosphere, new, and smells amazing! If you are into "cheap" gambling Casino Royale has $3 Craps around 2 am it's way fun.
Like someone else said Vegas happens, and you should let it. Walk around see the sites, eat at the nice buffets. if you want cheap buffets you have to go to Freemont St.(old Vegas) which is a fun place, the "Freemont experience" is pretty neat. it is a giant TV which basically tunnels the blocks of Freemont and each hour they play a show.
Planet Hollywood has great table games(the pleasure pit, girls in skimpy outfits dealing cards) It is all great but don't get caught up in the glamor you forget your head and end up having to give hand jobs for a ham sandwich because you lost all your money.