Do it yourself

My husband and I have owned our home, our first home, for one year now. So far we have painted two rooms. One out of necessity, the other out of my desire to be have a purple room. Now our first big house purchase is being delivered in a few weeks, an eight foot pool table. It is getting it's own room. what we would like to do is give it a whole adult play room feel with, a bar (ice cream and sodas only)and bead board around the room below a chair rail and paint above it. Until recently the paint was going to be Dark Green. But my hubby saw the Trading Spaces where Genevieve used chalkboard paint to do a kitchen, and he had an idea. So here is my question, Where can i find chalk board paint? how erasable is it? and what colors does it come in? Thanks Sara