I'm setting up my little cousin's Bamboo for his birthday but the problem is, they're running an archaic mac, which I know nothing about. My preferred programs do not run on macs (paint tool SAI and Opencanvas) and I need to find something:
-downloadable,
-free,
-simple, (like I know artrage works on macs but he's 11 so he doesn't need all those bells & whistles yet)
-relatively small. (They have very little space on the computer.)

Do you guys know something that might work?
Thank you!