This one is another approach on texturing strokes. The PENCIL-WITH-A-PENCIL is not really exactly brush - its a versatile texture stamp. I've created a just tiny repeating pattern (lead on paper/scanning/post processing/create seamless) hence we use it as a stroke. The upside is that the outcome looks exactly like the desired texture with the applied brush dynamics. The downside is that -because you basically apply a texture- you are bound to the color of the texture. In this case it makes sense but I won't work with all media styles. Well, just try it out.
I was wondering if this was possible – and yes, it is! I reversed the pressure input of these brushes to create a brush for one line drawings or one-liners or for a different approach on casual sketching wich will lead to more dynamic drawings. Check out the REVERSED_INK brushes (M & S).
Hit the image for this swell sketching and outlining brush for PS.
Here is the watercolor freebie file as plain vectors/images as well as brushes (check available ones in the brushes panel). This should work for you CS5 guys.
I've worked a bit on the combination of a vector brush masking out a seamless texture.
These results are quite cool: