As mentioned above, I specialize in watercolour painting. Typically, I use Winsor and Newton watercolour tubes.

I frequently enjoy combining watercolour with acrylic and drawing inks (which are also of the Winsor and Newton variety).

My favourite brush to use when painting on a small to medium scale work is the pentel aquash water brush. 

For my work that is not watercolour or ink based, I tend to use whichever student grade materials I have at my disposal.