Everyone has to start from somewhere. OU, BL, UU, NU, and NFE all refer to tiers.
OU=Overused
BL=Borderline
UU=Underused
NU=Never Used
NFE= Not Fully Evolved.
Here is a list of the tiers, and which Pokemon are in which. If you would like to make a team that fits into either the UU or NU category, I am willing to battle.
http://www.smogon.com/dp/tiers/