I purchased
Photoshop 5.0 years ago when I was working for The Walt Disney Corp. It's fully Loaded with practicaly every commercial plugin filter package there is. The bar on the top is
Extensis Photo tools. With it I can create buttons for every action or filter you can think of. It litterally cuts my production time in half.
Unfortunatly you can't use it with any version after 5.5 of Photoshop. I also have a copy of CS4, which I use now and then if I want to use any of the newer features.
But 5.0 is my workhorse!
In the Universe, nothing ever stays the same.