if you are gonna limit skills, i'd say that they should be limited to 225% as tagged skills, and 150 as untagged, and they should also increase the more you use them, receiving half of the bonus skill points per level, but intelligence would matter an amazing bunch depending on how fast your skills would go up.
ex. at 10 INT you have a 10% chance to increase a skill when using it
at 9 INT you have a 9% chance to do it, and so on
Skilled feat would give you a 4% bonus chance to increase a skill when using it, educated would give you a +3% chance to increase a skill, so a 10INT, Skilled, 2x Educated has a 20% chance to increase the skill by 1% whnever he uses it.
I mean, it certainly has flaws that has to be ironed out, but i'm just screwing about during a math lecture.
What do you guys think about this?