I had never heard of this technique before, but you inspired me to look it up. I've since tried it out on a handful of my pictures, and I really like the effect.
For others who may know little about this technique, there is a great tutorial here:
Canadian Photo Club :: View topic - The "Orton" process.
Written from the perspective of one paintshop pro user to another, this was very easy to put into effect. The only thing I would add to his tutorial, is that I have found that I often have to readjust the lightness histogram after all the other modifications are complete.
Enjoy!