Have you looked at Seawatch Fabrics?
http://www.seawatchfabrics.com/Produ...k.php?show=All
I don't see 1/2 yd bundles, but you can by 1/2 yd pieces. Prices are great and free shipping over $30 orders. Fast shipping too. I've been very happy with my orders.
Another new lighter color batiks is Tonga Treat Taffy. They are strips, might come in yardage too. I can't remember which shops have them but several do. Google will help you find them if you're interested.