I have a steel I got with my knives...and it is a good one. I don't use it however, I have an Ergo Steel II (had to go and get it to check what it is called). I got it from a butcher friend. You run your knife down a plastic groove which runs past two metal wires (hope this makes sense its not a real good explanation).
Is is good for me as I have trouble with a traditional steel...I just cant seem to make the knife follow the same path twice...this way I keep a good edge on my knives.
When it needs sharpening my sister or my dad does it for me. They both have a lansky (sp?). They do a much better job than me !