Cheap Joe's does have the best price and they also have a very competitive price (not sure if it's the best) on the Winsor & Newton watercolors that you can use to spot pt/pd. Buy it all at once and don't pay shipping twice! The only downside to Cheap Joe's is that the largest Richeson 9010 they carry and sell is the 2" brush.

Jorge, I wouldn't say that my brush strokes are uneven, just unpracticed