SOFTWARE TO TEST: 1. FireAlpaca (FireAlpaca.com - Free image editor) Ok, this should be the first software you try, because it's free, the stylus pressure support is unparalleled in the 'free' software category, and because if everything works well with this software, it's a safe bet to say that japanese art software (Illuststudio, SAI, Opencanvas, Manga Studio) will pretty much work. 2. Photoshop (Adobe) Not much to say here. Granddaddy of art software. 3. Sketchbook Pro (SketchBook Pro - Drawing App - Autodesk) A standard for sketching software from Autodesk. 4. Corel Painter (Digital Art Software - Corel Painter 12) A standard for painting 5. Zbrush (:: Pixologic ::) 3D sculpting software. There're tons more software out there, but the above should be a good subset.