Need some help with stratigizationing

PHP/POSTGRESQL

Here's the cliff's notes version of my situation:
I'm makeing a simple role playing game where users gain points by answering
trivia question. They can then use their points (like skiball tickets) to
attepmt certain actions. Success ot failure is based on a roll of the dice.
If successfull, the users personal stats (i.e. knowledge (kn), charisma (ch)
.... basically think back to the hayday of Dungens & Dragons) increase based
on a rule for each action. For example:

Action: GO TO COLLEGE
Cost: 15 points
*Success Rule1: KN +3, CH +1, ...
*Failure Rule1: KN -2,CH -1...

*Each action wil have 3 success rules and 3 failure rules randomely chosen
once success is determined.

That all being said, I need advice on how to store all this info so its
easily retrievable later. Thought? Suggestions? Jokes?

Thanks
--
Alexander Ross
alexross@bleen.net