Where can i find Comic book Art Supplies?

[Whatswiththeheadbands?]

I am planning to make my own comic book series. It will be done in full color.

My question is: Where can i find supplies at, and what are the best to use?

I need:

Ink
Coloring pens
Paper

I need really good quality supplies.

I might even make a TMNT fan comic sometime.

Also, are there any good sites or ways to promote the series?