Mara, thanks for that link on William Low. I love watching other artists use the Cintiq and get tips and tricks every time. I am sure William has, by now, the newest model. The new one even allows for height adjustments to the point you can stand and paint. I would never need that, a sitter (a huncher actually) but it's cool none the less:)
I have the second newest version, it's remarkable. I often feel it's wasted on me, as I have yet to truly utilize all it can do but it makes "going to work" every morning a blast!:)
I had never heard of Artrage either. How does it compare to PS Mke, similarities, differences? While I have learned how to use the mixing brushes in PS and so can blend colours etc and have great fun with wet/flow/mix etc, what I would love is more of a real wet "CANVAS", so as you apply colours, they bleed, as does watercolour or acrylic to on paper. I "think" this is what Painter allows, but perhaps PS does too and I just haven't yet found it. So far, other Illustrators have told me no, only Painter.