The way I see it, it mostly require new races (very easy to build), new careers/spceializations/talent (harder to build, but possible, using as a base both EotE and AoR), more weapons/armors (pfft, super easy), house-ruling the Melee combat to make it more interesting (EotE is little more focused on firearms), and finally: a new Magic syste, (the only really HARD thing to do)
Besides that, The mechanics stay exactly the same.
You could have a spell book/tome in which you record all your spells, but you can only "prepare" or "memorize" an amount equal to 5 + Intellect. Particularly complex spells could use up more of this "Encumbrance."
After that, a spell costs a maneuver to "cast" (ready), and then can be used, like a thrown weapon or a stimpack or whatever.
Bottom line, just use the existing rules, and change as little as you can in order to have it work and make sense. The magic system should be nothing new IMO; it should feel familiar to the system.
Now, I disagree with whafrog that The Force is the same as magic. The feeling is completely and utterly different. And no, it's not just fluff.
Agreed. In a Fantasy Setting, you need something utterly mystical, misunderstood, and outlawed to properly reflect how the Force works—something that has a strong "light side," but also that has a seductive, corrupting influence.
