Palladium Ballroom in Dallas?

I'm going to be in Dallas and considering seeing Kings of Leon at the Palladium Ballroom. Has anyone been there, can you tell me about it? Good place to see a show?

Can I get tickets at the door or do you think this will sell out and I should get tickets now?Palladium Ballroom in Dallas?
I haven't been there, but would like to see Ben Folds. I think it's all general admission, but i'm not sure.

http://www.thepalladiumballroom.com/even鈥?/a>

pearson prentice hall