I tried making my own RJ-45 cables a few days ago, and I got so frustrated I had to quit. Is there a device that, after untwisting and arrainging the cables correctly, one can slip the cables into it ...

Anyone have a link to a really elementary explanation of how to put RJ45 connectors onto CAT5 cable? I went out and bought a fancy-schmancy crimper especially designed for that purpose, looked up old ...