Dealing with shoeing horses, or wanting to make useful or decorative things from steel?
I just came across this article on Instructables, about setting up an effective small forge. There's a vid, parts diagram, and discussion about construction. The parts - brake drum, floor flange, 2" steel pipe, hair dyer, dimmer switch, concrete blocks - are easy to obtain, probably second-hand. For most people this would be cheap to build.
I know of an even simpler set up - google dave budd iron age forge. Its basically a hole in the ground with bellows, but you could easily use a hairdryer instead of bellows. Minimal kit and can do nearly everything a modern forge can. You dont even need a steel anvil - you can use stone. Plenty of blacksmiths in rural parts of africa do.