There's so many you could try. Here are a few links:
Moda Bakeshop
http://www.modabakeshop.com/p/recipes.html
Riley Blake Designs:
http://www.rileyblakedesigns.com/quilting_projects/
Abby Lane Quilts:
http://www.abbeylanequilts.com/portfolio.html
Green Fairy Quilts:
http://greenfairyquilts.com/catalog.php?category=27
Traditional designs done in modern fabrics are also nice. A simple trip around the world, 9 patch with sashing or alternating with larger squares, etc. Lucky Stars by Atkinson Designs is a great pattern. I did a couple of baby ones, one in all pastels, the other in pinks/greens that came out great. Very easy too. The hardest part is choosing which one to use!