I am in the same situation as the OP. only my new rifle will be a (very special to me) AR and I want really good glass for it. I have begun with 3 scopes I may be interested in but still looking for others to consider. here are the first 3 possibilities.
Leupold VX-3 4.5-14x40
http://www.sportoptics.com/leupold-rifle-scope-66220.aspx
Swarovski Z3 4-12x50
http://www.sportoptics.com/swarovski-z3-rifle-scope-4-12x50-brx-fine-reticle.aspx
Swarovski Z5 3.5-18x44
http://www.sportoptics.com/swarovski-z5-rifle-scope-3-18x44-brx-fine-reticle.aspx
