Well StonedOnDaGanja,

You'll need a lamp http://cgi.ebay.com/400-Watt-HPS-Met...QQcmdZViewItem

A couple fans
Try local hardware store

Seeds
Either out of some weed you have on hand or http://www.seedboutique.com/

Fertillizer
http://www.foxfarmfertilizer.com/

Pots
Try local hardware store

Above all you'll need the knowledge to put it all to proper use. Therefore reading will become fundamental.

Loco