Postby Kirin » Sun Jun 11, 2006 12:20 pm
There's a trading FAQ up at GameFaqs (which I made a small contribution to) that has all the trading price info in text format.
As for unlocking the "advanced" trading materials... yeah, some of them take quite a while. I unlocked them all just from stubbornness and OCD, but by the time I got my last few they were really irrelevant in that I could make money far more quickly with a good potch-funding setup in battle.