What type of digital software could i use to draw with?

I want some good software which i can just draw in a high quality. I was wondering what type of software takashi murakami would use?

Photoshop

Um.... Gimp, Photoshop, Corel Painter Essentials

Gimp is pretty much the free version of Photoshop.... so that means it is on a lower level, but it is really good for a freeware. Corel has a lot of good brushes to draw with.I recommend using this for the actual drawing and using Photoshop to edit it make it even better.

The best one out there is probably adobe illustrator CS3 or CS4. It's like photoshop except that it's more focused on digital artwork vs. editing pictures like in photoshop. But both programs are tricky to use at first so you'll obviously need to familiarise yourself with it through the online tutorials.

Dont forget to sketch the traditional way too...