Oh Wow that fireplace cover is so beautiful! I too would love to work with stained glass but don't have $$ for that, maybe someday *dream*. I have to settle for a painting with glass paints for a stained glass look. I have an example posted on at my etsy store if you want to take a look.
How expensive is this hobby? I really want to learn, but I don't want something that is going to cost me hundreds of dollars to do. I really want to know what the cost is, once you have made the initial investment in the tools you will need.