I'm picking up used Antminer S3's on ebay,about $125+ shipping.Most can be underclocked later,be sure to ask about the underclocking,I hear some can't be 
So how doe sit work if I invest in several of Antminer S3's?
Do I connect it to my desktop somehow?
Does it have an Operating System?
How do I buy one of those, open the box, and start mining bitcoins?
Just need a router with enough ethernet ports & ethernet cables,or a switch.You connect to them via a browser,IE or firefox,by typeing in the IP of the miner on your network.
Each miner you assign a different IP like: 192.168.1.100-150.
Read this
https://bitcointalk.org/index.php?topic=671189.0
I appreciate the reply.. really! I understand questions from noobs can sometimes just be painfully annoying, thank you for taking time out of your day to leave me a response d:
I sent you a PM aswell d: