Unlike D&D, the DMFA universe typically has LOADS of magic. That, and a few things don't quite translate over. This is a rundown of the major differences.
Detect Magic (Spell)Edit
Magic is EVERYWHERE, and castings of Detect Magic should reflect this, most commonly in the form sensory overload or close to it.
Eschew Materials (Feat)Edit
For all intents and puposes, all spellcasters have the Eschew Materials feat, which allows them to ignore using material components that cost less than 1 GP. Anything 1 GP or over, though, is still required.