If you're expecting to buy a new steam generating iron in the near future you should check out best steam ironreviews on Squidoo. The lens compares the top brands based on their ratings on Amazon. Irons can cost between $20 and $150 and your selection should take into account how much you expect to use it and what materials you expect to be ironing. More heavy duty materials like denim absolutely have to have a steam feature. In most cases, this is a standard feature but if it's going to be used on difficult clothing material on a regular basis, an investment in a more pricey model is recommended.
We also answered a question we saw on many forums - How to Clean a Steam Iron