My brush set. I only use a small selection of brushes 99% of the time. I have a ton more brushes, but they are specific custom brushes, rarely used.
Here are links to several excellent artists' brush sets.
Jonas DeRo : [link]
Leventep : [link]
(doesn't seem to be working for me, but you guys can give it a try)
Algenpfleger : [link]
Ditlev : [link]
For the beginner artist, though brushes are not everything, they do in a way affect your style of painting. It's helpful to play around with a range of brushes and find what you like.