I have a steel from Hand American (the large one) which works really well. As long as you buy one that's smooth and very hard, you will be amazed at the results.
I have an edgepro also, and even when you finish off a sharpening session with the fine tapes, steeling will make your knife sharper, and constant steeling during usage will GREATLY delay the need to sharpen, thus saving steel.
I also have the small razor edge folding steel, it works fine for small knives, but my large khukuris need a little more length.