I mean a Karaoke machine or just microphone hooked up to speakers.  I am finally getting better and need something so people can HEAR me now.  The only thing I can think of and buy for now is a karaoke machine. 

There have been quite a few discussions on this topic in the past.
http://puppetsandstuff.com/community/index.php/topic,3598.0.html
http://puppetsandstuff.com/community/index.php/topic,3970.0.html
http://puppetsandstuff.com/community/index.php/topic,5673.0.html
http://puppetsandstuff.com/community/index.php/topic,3514.0.html

I don't feel you really need a Karoaoke machine.  It is important though that you get a head set microphone. Remember you hands are busy so you can't be holding a mic and putting one on a stand and expecting it to pick up your voice is not going to work.

Thank you, Shawn.  The first discussion helped me.