I have an iron that I bought from the hardware store, of all places. It was quite affordable, under $20 if I remember right, but the number one thing that appealed to me is it doesn't have auto shutoff. It gets plenty hot.
Whatever you get, make sure you read the pamphlet that comes with it regarding using water. I know in the past some iron manufacturers have recommended using distilled water, but more and more lately they seem to say not to use distilled water. My current iron specifically says to use tap and don't use distilled.