Red River Paper
http://www.redrivercatalog.com/ is by far one of the best.
Other good ones are Office Depot Premium Glossy and Ilford Gallerie. Stay
away from Kodak, Jet Print and Royal Brites. The first three are highly
water resistant. The last three have absolutely no water resistance
properties. The same goes for the printed image. Much, much better on the
first three. Don't be afraid to use refill inks. If you do much printing,
you can save a bundle. The vendor I use supplies Formulab inks. I'm not
going to post any data about Formulabs. Check out their web site and see for
yourself that they are a major force in the ink industry.
www.alotofthings.com is the vendor. Excellent (low) prices and top notch
customer service. Even if you choose not to refill, check out the web site.
Highly informative and quite interesting.