Here is a picture of every Pride program that was produced, in order of events. If you saw my poster thread http://www.mixedmartialarts.com/mma.cfm?go=forum.posts&thread=2170156 you'll notice there are 65 posters. Here there are 66 programs. Pride The Best Vol. 1, 2, and 3 did not have posters produced for them, and only Vol. 1 had a program. It's pretty rare and you can see it here 3rd row down, 4th one from the left (rainbow themed).
Nice 
Holy shit man, that's awesome!
Unlike the posters which I had to piece together one by one, I was able to stumble upon someone looking to get out of collecting at the right time. He had around 60 of the programs and I paid $1500 for them. The other 8 were actually pretty easy to track down from other collectors when I started offering $100 a piece for them (which was pretty high at the time). One dude gouged me pretty bad and I paid $200 for the Bushido 5 as it was the last one I needed and that was pretty much robbery then.
The market has appreciated a bit where most of the programs now would sell for around $100 as evidenced here at the best dealer in the business's site:
http://www.mmacollector.com/category.html?cat=MMA%20Programs
Since I got most of them in a big lot, I don't really know which ones are super rare. I was able to just jump in, bunch them all in almost one purchase then pass. I am much more aware of the rarity and price of the posters. If you are interested I can do some story telling in that thread.
You looking to sell or pawn that collection?
OP, I have a feeling I know you ;)