I usually use Something Greek and Greek101. I think that GreekGear is def too pricey. Greek101 is also kinda pricey and they take too slow. They got our sororities name wrong on an order once but they have really good patterns. For other stuff I use the Greek shop
www.GreekShop1.com or the Greek Boutique
www.uniquelygreek.com The Greek Shop is especially good with making stuff for locals.