Keith,
I'm glad to be of some help to you. I have been helped by Lonman and others who are experts in professional sound equipment and it's only fitting that I try to help out others too.
BTW, I found a company in China that sells PC based systems, pre-loaded with MP3G songs. I don't know how they can offer all of those songs really cheap. Here's the link:
http://www.unifykaraoke.com/english/karaoke_server.htm
Acekaraoke.com also sells those units:
http://www.acekaraoke.com/haceks1000.html
I'm not buying their systems. I'm happy with what I've got.
The karaoke industry is changing from CD based to PC based. I don't know if that's good for the KJs in general, especially with all the newcomers who wish to undercut the experienced KJs. What it comes down to eventually will be the quality of the sound system, as Lonman has stressed in his posts, and the ability of the KJ to carry on a good show.
Cheers,
JD