If you are comfortable with the price of the Nagler eyepieces then you really can't go wrong.
However if you would like an excellent eyepiece at about half the price then look at the Explore Scientific line. They get wonderful reviews. I have the 8.8 and the 6.7 in the 82 degree line and they are beautiful. The 68 degree also get high praise but I don't have any myself.
There is an 82 degree 14mm and a 68 degree 16mm in the Explore Scientific line.
http://agenaastro.com/eyepieces/1-25...cientific.html