We went last year and it was horrible - we'll never do it again! The streets were packed with people, they were selling beer everywhere and people were throwing up all over the place, and there were families with little kids sitting outside watching it all! I'd never take my kids to Vegas, and I love Vegas! Anyways, the worst part was that there were groups of guys cruising up and down the streets mauling women! They'd run by you and grab your boobs and crotch (I got grabbed a couple times), but by the time you figure it out, they're gone. I was clinging to my BF and still got mauled! It was awful!
Good luck and DON'T wear a strapless top! They'll pull those down. Our Blackjack dealer warned us about that.