I too would recommend the One Block Wonder and Stack and Whack.
I especially recommend Paula Nadelstern's books. I have heard her speak and seen her snowflake wuilts in person, and they were incredible! Unfortunately, her snowflake book is out of print, and they charge 3-5 times as much as the original price if you manage to find one for sale. But, you may be able to locate it through an interlibrary loan.
http://www.paulanadelstern.com/quilt-gallery/index.html
Her website will inspire (and maybe intimidate) you. Obviously she does advanced level work, but it definitly shows what can be done with this technique. Paula's books tell you how to audition different fabrics.
Here is another quilter that does beautiful kaleidoscope quilts:
http://www.quiltartisannharwell.com/...pe_gallery.php
Here is a basic tutorial:
http://home.howstuffworks.com/kaleid...uilt-block.htm of course careful selection of fabrics can make even this simple block fantastic.
http://www.quilterbydesign.com/lesso...eidoscope.html shows how to put a quilt together with different colorings.
and here is a full pattern to download free:
http://www.robertkaufman.com/quiltin..._kaleidoscope/
good luck! be sure to show your quilt as you work on it, and especially when you get it done!