Well here are the fabrics I am planning to use...I am hoping I can get a little more of the flower fabric. I'll check next week when I am in town.
I have enjoyed seeing what others are planning to use for their centers. I found a couple on quilterscache.com that I like and can alter to make rectangles:
http://quilterscache.com/I/IrisesandLionsBlock.html and
http://www.quilterscache.com/D/DeweyBlockBlock.html