hello alex, im currently trying to get my hands on as much of your material as i can, but money's kind of tight right now, so i'm in a bit of a dilemma, what should i get first if i already have box office poison and tricked, more box office posion or too

Too Cool to Be Forgotten is probably a more satisfying read, since BOP! More Box Office Poison is a collection of short stories and functions more as an appendix to Box Office Poison. 

On the other hand, BOP! is out of print so if you find a copy you might want to pick it up, or risk paying as much as .01 for it on the secondhand market!