Fate Point / Aspect Magic for Pathfinder

[steerpike65]

I recently discovered and purchased the excellent 'Fate Points & Aspects for D20' from 4th Dimension Games after spending the last while using Strands of Fate (Void Star Games) for my gaming.

I'm thinking of developing a PF homebrew where I remove all the main spellcasting classes (and change the minor spellcasting classes to be non-spellcasting using archetypes). Instead, I want to replace the main spellcasting classes with three magic-using classes that depend on the use of Fate Points and Aspects for limited magic similar to the following PF schools/specialty:
1. Enchantment
2. Divination
3. Summoning (outsiders/undead)

I'd appreciate any ideas to help with balancing these classes against the other PF classes (and any other constructive thoughts/ideas).

My thoughts/concerns are as follows:
1. In Strands of Fate, I could control the amount of magic by requiring Fate Points to be spent to use magic. If I do this in PF, will this make the magic-using classes significantly weaker than the standard PF classes (who would have their FPs in addition to their class abilities)? If so, how do I balance this out? Extra FPs for these classes? That can only be used for magic?
2. If I don't require magic-using classes to use FPs for magic, how else can I limit magic? Fatigue? Limited 'x per day' class abilities? Social influence (e.g. fear of magic)? I don't like backlashes or insanity as this punishes the character too much in my opinion and makes the game less fun.

For those who want a free sneak peek at what Fate Points & Aspects are, visit:
Fate Points & Aspects for D20 Sample Chapter
Another free interesting take on Aspects for D&D (although for 4e) can be seen here:
Heroic Traits for D&D

Thanks in advance for any help.

[Helaman]

Thanks for the tip - I added the Fate thing to the shopping cart.

[steerpike65]

I should also have mentioned that I want to move away from the typical Vancian magic, i.e. spells, of D&D for these three classes and give them more flexible and eclectic powers (yet lower power, less flashy than D&D magic) - more like feats or class abilities.

[Skaorn]

Check out the Midnight setting from FFG. Channeler might be another way to go and its a spell point system.

[steerpike65]

Skaorn wrote:

Check out the Midnight setting from FFG. Channeler might be another way to go and its a spell point system.

Thanks, I have the Midnight setting but I specifically want to design my magic system around Fate Points and Aspects, i.e. a Pathfinder/FATE synergy.

[steerpike65]

I have been having further thoughts on possibilities and am now thinking that the class abilities of the magic-using classes will be oriented towards limited 'x per day' useage of Manoeuvres and Declarations to create temporary and permanent Aspects related to their area of specialty - the advantage will be that these limited per day usages will not require a Fate point to activate. They will be effectively like Tagged Aspects.
As the class progresses, they will gain more of these usages (probably every 5 levels.
Any thoughts, please comment constructively. Thanks.