Some works employ computer art programs quite a bit. Others are mainly by hand and scanned in. Fortunately the cost of adding memory has gone way down. If you can t afford this route, plan on working with fewer colors and at lower resolutions. Anything you can do to get more storage space, that will be of great benefit.
Color images byte off a lot.
A good scanner is wonderful for importing images. I see even flatbeds are coming way down. I can get one now for half the price I paid a few months ago. Get a good color inkjet printer. If you can afford a color laser printer, you shouldn t be reading my comments but take private art lessons from a master painter.