Yeah, the semi-colon seems to be getting in the way. I was getting an 'unauthorized SQL' error using the first of the two statements you provided. When I removed the two semi-colons it worked fine, but the output showed a bunch of misplaced semi-colons, as you might expect.
But the good: it outputs a list of the systems that have local users in the Administrators group. That's huge! That was goal number 1. Goal number 2 is a lesser extent, to show the local users themselves, without anything else (i.e. any domain accounts). I think anything from here on out is going to be clean-up of data/code. It sounds like the right way to do this is to take the members field and do the scrubusers as you mentioned. Sounds like a good chance to develop some of my SQL skillz. :-)
Thanks again!! If I get a nice, efficient query put together I'll repost it here for others to see.