Materials I use when working with ink and watercolor:

• Arches hot press watercolor paper
• Deleter ink - Black #3
• Tachikawa nibs - Maru, G-pen
• Daniel Smith watercolors
• Escoda Reserva sable brushes (or whatever, but i have two of those and they are so nice)

I generally buy art supplies from Jetpens.com, eBay, or Blick.

One of my favorite resources for learning about the more technical aspects of watercolor painting is handprint.com. The watercolor palette I use today I made using much of the advice in the "guide to watercolor pigments" section of the website.