Have you concidered not doing it?
Well, thing is.... In pnp dnd having flaws is fun. It opens up your character to fail every once in a while and can make your character more interesting.
In a single player computer based rpg however you have non of that. If your stats are low it can just screw you over and opens up your character to an early grave...
Incidentily bg1 and bg2 had some insane difficulty curves at times. Having anything other low stats just meant you would die faster.
For example: mindflayers in bg2 vs a fighter with low int. Yup. Fun times!
