If you live in a fairly large city, then chances are you'll be able to hire some experienced dealers to run the tables for your casino night. Check the Internet for local listings for dealers and compare prices. If you have the budget, having some real dealers can make a big difference in the overall experience of your guests.
If you're hosting the party and can't foot the bill for real dealers, then get some friends who are familiar with the games to volunteer as dealers and make sure everyone is up to speed on the rules of the games. Playing dealer can be a lot of fun for the guests, so you shouldn't have much trouble getting volunteers.