I am a designer who uses many different types of papers for printing. Xpedx has been the best resource. They carry a huge selection of papers from all of the major paper mills, and often have prices better than what I can get wholesale. The customer service has always been very helpful as well. They carry other office supplies as well, although those prices seem more mainstream. If you need paper, this is the place to go. Sign up for their mailing list and you will get a coupon about once a month.