I'm sorry if this has been linked elsewhere, but here is a really good link site.
http://www.sumaleth.com/links/
deals with tutorials for all forms of digital art, but mainly digital painting.
Yep, that's him. I actually sent him an email about sumea.com.au when I first opened up the site. I remember back a decade ago (around 93 I think) when we both entered a graphics competition. It was pixel art, Deluxe Paint, 32 colour palette Amiga stuff. His picture was voted first, and mine came second, but I still claim that my entry was miles better than his [:)] *shakes fist*
I know Sumaleth.. he used to do pixel art with Dpaint on the Amiga over a decade ago. [:)]