( I should have said 3d Textured Models not graphics in headline but ohh well …)
I would like to plug my friend and ex co workers art package in asset store
http://u3d.as/content/game-candy/medieval-kingdom/230
We worked at popcap for almost 4 years on many projects together, He is one of the best art people I ever worked with, he did graphics for many popcap games ( BananaBugs, PvZ xbox themes, and many many others )
He also does work for hire! here is his website http://www.game-candy.blogspot.com/