Thanks to all who have commented on this song. It's been a bouncy ride!
Some saying it's the best I've posted, or that they could listen to it all night long, others saying it's not for them. Oh well, can't please them all.
As a last shot at the sound of the song, I imported the original GarageBand project into Logic Pro and reworked it a bit, trying to take away some of the compression on the guitar, and giving the mix some more 'bottom end'. The new version is at the original link in the first post. No need to listen again, but I thought I'd keep the record straight.
As it is, this is a demo, not meant to be the final production version, so I am reasonably happy with it. Once I get some people to join me, I'll get to a real studio with experts to see what they can do for me.
Thanks again for ALL the comments.