Basketball Basics

[irontoad]

I am a huge basketball fan, but I'm afraid I'm lacking in knowledge about some basic terminology that gets thrown around, and was wondering if someone could help me out. For example, if a player plays the '3' or '4' position, what exactly does that mean? Also, what is the difference between a small forward and a power forward, etc.? Lastly, what or where exactly is the low post? Thanks anyone.