Im both a player and DM playing with different groups of people. As long as we have had access to DnD insider it had been a generally accepted rule in both groups that we only use the 'official' sources making sources like Dragon and Dungeon magazine off limits. We havent actually explored the powers, feats and item from these sources much but have taken it more or less for granted that they are munchkin overpowered and unbalanced. I as a DM has adopted this view but seing all these cool builds out there using source material from these sources I find it hard not to. Also, there are no filter in the character builder where you can deny access to different sources. I want my players to make characters as cool and diverse as they get so I ask for advice from anyone that may have an opinion on the matter.. Should we stick to the official material for character creation? Do material from Dragon and Dungeon magazine tend to be overpowered and unbalanced?