Welcome to RetouchPRO Barry.
Here are a couple of possibilities I came up with experimenting just now. Surely there are others:
* The first example was rendered by the
Splatter Water variant from the
Watercolor group in Corel Painter X.
* The second was rendered by applying a custom setting I concocted ("Circles turned to spatters") with the
Impressionist plugin available at
www.Trimoon.com (click "Downloads"). The left side of the attached image is the "before." Once Impressionist is installed download and unzip the attached .zip file. Copy the .set file into Impressionist's \User Settings folder and restart Photoshop.
Hope this gets you started.
~Danny~