Upgrade from EndNote X3 or use Word 2007

I installed Office 2010 without realizing that my EndNote X3 would not work with Word 2010 (I had Word 2007).  All of my references are in X3 and I do not want to lose them.  Which should I do:  1. Go back to using Word 2007 and EndNote X3 or upgrade EndNote (to which version?) and continue with Word 2010?  Money is not an issue - I can pay for the upgrade, but I want my X3 library to transfer to the new EndNote version. 

I would appreciate any advice.  Thanks, Karen

Upgrade to X6.  I like Word 2010 better than 2007.