In the Fantasy Companion, one of the new Arcane Backgrounds is Ritual Magic: the idea is that a chracter is slower and less powerful than a full-blown wizard or sorcerer, but is far more safe and consistent in the use of his abilities. Unfortunately, the mechanics that back this up are that these casters have fewer power points, a lot more penalties, and are less likely to recieve backlash—overall, they're strictly worse than other casters.
I address this by adding a new mechanic: Ritual Preparation. Ritualists may concentrate for a full round (taking no movement or any other actions)—if a character is Shaken, wounded, or Fatigued during this time, he must make a Smarts roll to maintain his concentration. If he's successful in his concentration, the ritualist may add +2 to cast any power on his next Action. This change presents ritualists with 2 casting options every round: they can rush their casting to simply cast the power as usual, or they can exercise a smidge of patience to make their spell practically guaranteed to fire or increase their chances of getting a raise. This also makes a good ritualist more position-oriented, as their spells are more consistent and powerful (due to a higher raise chance and lower Backlash chance), but they are far less mobile then their counterparts.
If this isn't enough to make Ritual Magic viable, GMs might consider allowing the user to utilize one of the Ritual Casting options from the Horror Companion when casting his abilities, specifically the extended range, duration, or effect. If including the damage option, the GM may wish to halve the effect from +2d6/4d6 to +1d6/2d6.
I know this post was short, but I wanted to mention it before I forgot. I may do an entire post on Trappings later on but for now I hope this helps someone somewhere out there.