Thank you Rod. If I come across any PS plug-ins I like, I put them in a single directory and use the PSPI plug-in to browse to the directory where I have them saved, select the ones I want added and then click ok, is that correct?

If you place them all in the same folder you only need select the folder.
PSPI will sort them for you ,and name them in Help also (Help/photo shop plugin browser).

Here are a couple you can start out with.
http://photoshop.pluginsworld.com/index ... &license=1

If you get a windows error on one it means windows will not run it correctly in Gimp.Try running it through Xnview instead.

Thanks for everything, Rod, it is sure appreciated. I looked into buying an educational version of PS but in Canada it is still $300 plus tax. Maybe I'll just bid my time for now and see if I can come across an easier method of doing my selenium tone. Topaz doesn't have what I need to do it and their approach to toning doesn't lend itself to my approach very well. Hopefully, I can still use it and my money wasn't wasted.