[Edit from 3 years later]: Nowadays I wouldn't really recommend doing this. Not that I ever had a problem with it and the sound was still pretty good (lucky me I guess) , but simply put it's not surround sound except by the technical fact that all it is is a bunch of speakers SURROUNDING you. Which for me all I had was the left and right rigged where correct sound would be output on the correct sides. There was no sub or back speakers.
^ Read ABOVE first. ^
It is always best to watch movies or play the very popular game Guitar Hero with a sweet Surround Sound setup. This instructable will show you how to set up and add multiple speakers to your surround sound. You can probably add as many speakers as you like... you should know when your going overboard with all the speakers. Please keep in mind that this is my first instructable.
Step 1: Supplies
Normally you can find all you need for this instructable at garage sales or for pretty cheap used.
*Home Theater Receiver( I got mine free from my uncle; I'm sure if you buy brand new it would be quite expensive.)
*Speakers of any kind(I use just a bunch of speakers I collected for this...all different kinds...most are old)