B's XPro 10 Variations
B's B&W Splittone
I chose the XPro 10 Variations which come with 14 extra colour overlays all of which are all highly customizable to your own individual taste.
They are all compatible with Photoshop 7 - CS4 and Photoshop Elements 5, 6 and 7 and come with an installation PDF.
Below you can see of some of the XPro settings applied, the original is on the left. Click on the image to see a larger version.
If you are interested and want to see more please visit Bärbel's Website
Also check out other people's results in Bärbel's PS/PSE Actions Flickr Group
For those of you unfamiliar with actions, you can either install action sets like these or have a go at recording your own, here's a tutorial on how:
Photoshop Actions and You