Another way to do it is each level:

• 1 power (aka adv class talent)
• 1 feat (aka base class or race talent)
• +1 ability score (not +2)

Maybe:

• +x to core skills per level based on...hmm....

Not sure about:

• secondary skills
• hit points

Powers aren't all talents, though, there are rituals and such. Maybe we need power sources to come in larger bundles. That is:

• Invoker is a PS, but the individual bindings/invocations/etc are Powers
  • Summoner abilities are feats