Scanning/Shooting Large Artwork

[Ronald]

Two years ago, I began writing stories and concepts for a satire comic book. I have a few stories entirely finished and found a great deal on high quality art pens. I haven't begun illustrating, however, because I'm concerned with how to get the finished artwork on my computer. My main goal is to have the comics online, but I'd like to create them so that, if desired, I could also print all of them in a book someday.

With this in mind, I believe they need to be illustrated at least 150% the actual print size. The original art, created with pens of various thickness, will be black & white with some shades of gray; color will be added in Photoshop and text will probably be added in Illustrator. From my research, either I could pay a company to scan my panels with a large flatbed, or I could buy my own camera and shoot them myself; I already planned on getting a new camera anyway. But I'm having trouble telling what mega pixels I'd need and what lighting (one woman said she shoots artwork outside in "diffused sunlight"). Maybe finding a company to scan them would be okay, but who knows how much that would cost?