I got tired of searching for a set of nice high resolution paint-splatter brushes, so I made one myself. Contains 16 brushes. I made these with CS, so I'm guessing it won't work with older versions.
I just whipped up the picture to show off some of the brushes, I know it's not great. ;;
Feel free to use them without crediting me. A comment or a favorite here would be nice, though.