Ty those are great suggestions!
Having read Righteousness I now find myself attracted to Potent Prayer. Letting my Conviction (read Luck) compliment other's actions is too cool... but a fate point to use it Ack...
Does anyone know of any examples of buying off the FP cost of a power?
From experience, paying 1 FP to gain a +1 bonus to ALL skill checks that go towards a particular goal is well worth it. Think about it this way:
When you spend a FP to invoke an aspect, you get +2 to ONE roll.
When you spend a FP without invoking an aspect you get +1 to ONE roll.
So, yeah. Getting +1 to all skill checks for, potentially, an entire Scenario is quite handy. And you only lose it if the GM compels you away from your task. (IE: gives you a FP)