wondering if there are any good gear lists to refer to once i hit 70?

there are so many gear lists...
i could spend 2 hrs writing it out... or I'll just ref you to a guide that I tell all spreists to read at some point before raiding (sections 4 and 5 are gear):
http://elitistjerks.com/f31/t16977-shadow_priest_101_how_melt_faces_effectively/

http://www.shadowpriest.com/viewtopic.php?t=5327

pretty much just go for sum nice + spell dmg gear then get ready to own but idealy go afflic lock

LOL at the lock>spriest.  You should try raiding past t4 content some time... where afflic becomes a utility spec and spriests are always in high demand.