Allan, thanks. I was going to try that when I get it working but since I'm going to have way less than 1 volt to work with, I was thinking it's probably going to a pretty healthy number of turns to get me enough voltage for the Arduino's analog input.
Will even look at using a voltage doubler or trippler if it looks like I can get enough of a signal to work with.
Even thinking about ordering one of those off ebay for a couple bucks that will go around the cable and rated for a lot less current, then see if I can use some math or additional amplification and make one of those work. I think when I get the thing together and can start doing some actual testing, I can use of a little redneck engineering and get a signal I can use, just figuring out what to do with it in the Arduino will be my major challenge then. I'm not too swift on the code for those things.