Here are some links where I have bought...
Duraham has some decent prices and are good folks... Though the listed scopes do not contain any of the newest Nikon Production released about two months ago.
http://www.durhamoutdoorsupply.com/brand/nikon/rscopes.html
--------------------------
theopticzone has some good prices and I have bought about 5 scopes from them. Jon and Tammi are realnice peopleto do business with. The do have the newer scopes listed, BUT Nikon is not getting a bunch out yet, so the available scopes may be limited. But the do have last years model line still , also.
I also saw where they are offering free shipping on orders over 300.00.
http://theopticzone.com/nikonscopes.aspx
----------------------------------
SWFA has an extensive line, and they say they will match prices ... but I have only bought scopes from them 2x. But it was a smooth deal each time. Most folks there are quite knowledgable, but not all folks.
http://www.swfa.com/c-10-nikon-riflescopes.aspx
Hope this helps you out. I have had the lowest prices and best service at these three, but take a look and compare for yourself.
God Bless