I need to know if this is normal. When I press on the brake pedal while idling the brake is relatively soft but no to soft, it feels "correct" but when I am still parked, and I accelerate the pedal stiffens up a bit.

Also when I abruptly use the pedal I don't get the "3 amigos" I get the ABS light and TC light.

Any thoughts?

 

according to your bio you have already flushed the complete brake system?

 

Have you replaced your rubber brake hoses yet, if not go to stainless steel and reflush, this will give you a firmer pedal.
As for the ABS, if the lights come on at all, you have a ABS issue and must get the codes read while the lights are on.