Just want to illustrate ideas from chat about perk system and spells: maybe it's better to just make spell_trees (like in Diablo_2 or smth) where most of spells require perk equivalent to work (one perk can be used but many spells). Also it should illustrate possible spells, that we can take from Skyrim (including using spell_effects of shouts). Most of suggested spells sure can be made (they exists in mods or can be made obviously as combo of common spells).
I made structure of 3 skills for example.
Smitehammer propose to add some automatic progression perks in all skills that would give effectiveness cons (such as additional damage by archery or so).
Later i'll add more info on proposed spells.

I have mixed feelings about
I have mixed feelings about this. Imagine yourself using this system, it would require 1 level=1 spell and I would normally first spend my perk points on melee damage upgrades than magic (since magic in skyrim is so under-powered for the user).
I can propose making it skill level wise. Let's say for alteration we could have something like this:
You get the idea, this would have to be tested of course for balance, if there won't be scaling in skywind (which I hope). And since there's been talk about spell-making mods that are working even now, it's possible to make it even better.
Also, custom spell-making means highly costing spells, means we'll still need perks that decrease their cost.
By they way, were did you get those icons? And what do the acronyms mean (TK,MW,SW,DG,SK)?