If you haven't seen the "Tempst Torch", check it out; http://www.tempesttorch.com/products.aspx
I saw a couple of these mounted on top of pillasters in a client's yard. Very cool, and put off a fair amount of light due to the flame being much higher than a typical gaslight. It also puts off a lot more heat, and burns more gas as well. You can sit and stare at the things for hours. Like a fire tornado in a jar.