The search for curriculum

Okay people, the search is on! I am looking for affordable elementary Sunday school curriculum for a small Anglican church.  The curriculum we are currently using is okay, but I am wondering if there would be anything out there that might be a better fit.
If you know of any curriculum that I should be checking out, please let me know! it doesn't have to be Anglican, just solid theology for a small classroom setting.
I will be searching and 'reviewing' curriculum on this blog over the next little while.  Feel free to help me out with suggestions!
I am also currently a student for a master's degree related to child development and I heard a rumor that I may be able to write/create a curriculum as my thesis project next year, so if that happens I will keep everyone posted about the progress along the way.

Thanks guys and gals!
K