What resolution/brush size?

[Doju]

What page size options do they use for this? And what's the brush size (as in for the initial outline)?

http://www.youtube.com/watch?v=IzoHhgrHrEg

http://www.youtube.com/watch?v=ieXwQGRWhhU&feature=related

and most importantly ...

http://www.youtube.com/watch?v=DkeF7gfyM-U&feature=related