I agree with you. The wording on the Nikon web site is a little confusing . It implies that the MS-D10 adapter is included with the MB-D10 grip. However, the local distributor here in Canada lists it as a $28 extra.
It sounds like you are ready to move to the 'dark side'. Are you giving up on your 7D? I bought a Tamron 90mm Macro to use with the D300 and sparked a discussion that you may find interesting. See http://forums.steves-digicams.com/fo...mp;forum_id=66