Well have you found any more Stage 4 parts? I sure haven't, because I have them all anyway.
I know what toe does (thank you Gran Turismo 4) it alters the response of turning in the car, a front toe-out bias results in understeer, and vice versa. I know this because I have a rear bias in all of my showing off (in other words drifting) cars in GT4.
With camber like PS says its best to have it neutral or slightly negative for twisty circuits, don't adjust it too greatly otherwise you'll lose acceleration and braking won't be as effective as normal.
I can't remember from Auto Salon mag what caster does so I'm taking PS's word for it that it increases straight-line grip (is that the opposite of camber??)
Murcie is back.