Check out the tutorials from Missouri Star Quilt Company. Most are easy, but look more complicated than they are. I love the Double Slice Layer Cake quilt. They usually use precuts, but you can use your own fabrics. Here is a link to their site.
http://quiltingtutorials.com/
This link on the Moda Bakeshop site will explain what is in the different precuts (usually - when purchasing, check the qty as they might vary by brand).
http://www.modabakeshop.com/p/weights-and-measures.html