Meet Project Dogwaffle. http://www.thebest3d.com/dogwaffle/free/

Do you know MyPaint?
http://mypaint.intilinux.com

Not only it is free, it's OpenSource like GIMP

I use Dan Richies (Project Dogwaffle) Howler-7.2. Not free but has the added animation software.

Thanks for the link YAFU. There's something else Shock's involved with. (extra brushes )
Rod -any other benefits to the paid version?

Quite a few actually.
Orbicals - orbiting particles around the tip of the brush.
Awesome video frame tools
3D tools
Almost all filters work in real time
If you get a chance try and check out some of Phillips youtube stuff for Dog Waffle and Howler.
http://www.youtube.com/user/staigerman?feature=watch

Do you know why it's called Dog Waffle?
Because Dan has/had a dog named Waffle.
Not sure if he still does, that was years ago.

Wow! Sounds cool. Thank you. His videos are well put together - I watched the vanishing text one.

Yeah he has some great stuff there.

Erisian the free version is basically the very first and old version
nothing to compare with the last, (or even with the previous PD 4)

My paint is a totally different thing, sure both are for paint but there end similitudes

Thanks PC. I've got both now and may buy PD in the near future. I've been playing around with My Paint and find it a lot of fun. Wish it had more layer modes though. An overlay layer is essential to me when I paint as I work in greyscale first then add colour before flattening and painting as normal.