You don't have to use the moda packs, but you might want to invest in some pinking shears for that nice pinked edge.
Its a fun pattern, and it works up very quickly. My picture is on my blog.
http://alimaui.blogspot.com/2009/11/...ily-quilt.html
This is the moda bake shop link
http://www.modabakeshop.com/2009/08/...ily-quilt.html
The size of the blocks are 10, 5, and 2.5 inches respectively.