There are a lot of quilts/patterns that are specifically designed for two colors. You might try doing a search for
that.
http://www.fabricmom.com/2010/01/two...quilt-pattern/
http://www.powells.com/biblio?isbn=9780696220937 Let me look and see if I have this book. I think I do. If so, I'll pm you and we'll work something out if you want.
Right now, I'm going to bed since I have to get up in about 3 hours to get ready for church.