Read new episodes of “So, You’re A Cartoonist?” here: [link]
There are a lot of books which will tell you what tools you NEED to become a great comic artist, things like brushes and ink pens and the special sized comic paper and blue pencils and kneaded erasers and photoshop and large scanners etc etc...
But the real truth is, it doesn't matter WHAT you use, it's HOW you use it. One of the most famous Graphic Novels, "Maus," was done primarily on extremely flimsy and cheap paper. Of course, if you want to work for a major company like DC or Marvel, there are some things you DO have to follow... but if you're making comics for yourself, it's really anyone's game when it comes to technique providing the end result is still the same.