Thanks to John, TK 1446, for the inspiration, as well as Skullworks, and Puget sound, i've decided not to purchase that "other" sound system, and have some fun building my own. I've assembled the pieces, and will be working on it this week. I'm a teacher, and have February vacation this week, so i "should' have plenty of time to devote to working on this project.
Here are some pics of the pieces i've got:
(Warning: some of my terminology may be a bit technical!)
Radio Shack Amp/Speaker
Radio Shack Microphone
2 computer fans
2 switches
2 9V battery attachments
2 solder-able microphone plugs
some wire
5 feet of wire tubing
2 Hovi-Speaker Mic Tips (not pictured - they're already on my bucket, but i threw the old mic tips in the picture for posterity)
Once I get "some" progress made, i'll post more pics here. Wish me luck!!!