Gil-
A friend of mine just moved there two months ago. He wanted to try something different, and being that he loves Vegas, and it isn't too far away, he decided to make a go for it.
His problem is, that he doesn't try very hard. He has found it difficult to exert himself and do what it takes. That being the case though, he applied at two different jobs, and got hired at both. They were not the most glamerous, but it was work. Plus the benefits of having the food available 24/7.
A future boss at one place, asked my friend if he could smile. Apparently he was being too serious. When working at a casino, you are in the service business. Even if it means getting out of your comfort zone, you must become more outgoing, and smile.
These casinos have thousands of employes, and are continually looking for more. You might look into the yellow pages, and call the employment department of each hotel. Many of them will give you an automated list of what positions are available. You may obviously not qualify for all of them, but what counts is attitude. I am an employer myself, and when looking for someone to hire, I want a good attitude above all. I can certainly train someone for the position.
You might check into the local schools that teach you to be a card dealer. You can do this while working, and are not too expensive. Right now they are looking for craps dealers. A little more work to become one, but they pay is better, and they are in demand right now, because many of the dealers don't know how to do it. They are stuck doing their black jack, and it is easy. But a good thing is that many of the dealers are making pretty good money.
As far as reading materials, I suggest you read more positive attitude books. Many of your posts are you getting down on yourself, and the first thing you need to do is get rid of that thought process. So if that one book didn't work for you, there are many others. Work on you, and that will become evident to others as they look to hire you.