A few words of advice. Friends don't let friends play mill.
too true.
FNM is usually standard which means only cards from RTR block, m14 and now theros. You'll have to limit your card selection down to those sets unless your store plays modern. Also, it's been said many times on these forums. You don't play "mill", you play control, with a mill win condition. Throwing every card that says "mill" into a deck doesn't make it playable, no more than throwing everything in your fridge into a blender makes a milkshake.
You have to have a plan. Mill decks (while not popular and not particularly competitive or effective) can still work. At this point you'd have to be UB or Esper (BUW), you might even be able to do grixis (UBR). You must have a way to deal with opposing creatures, removal and board wipes. You must have a way to deal with opposing planes walkers, removal and counterspells. You must have a way to deal with opposing control, card advantage and counter spells.
You're really looking to build a list similar to this.
http://sales.starcitygames.com//deckdat ckID=59588
and then just replace the other win conditions with a little mill. Instead of Ætherling you'd want jace memory adept, and perahaps anotehr mill creature like consuming aberration. This type of deck also lost a key card in standard when rotation happened. Nephalia drownyard. You can't play that in anything but modern now, and mill really isn't a valid strategy there to win an FNM.