10 points for out-of-career spec (Force Sensitive Exile) and you get a force rating 1.
Each force power will cost you 10 points to learn. I recomend only one or two. The powers can be upgraded for more points (5-15 should give a good trick or two.). You might want some force talents. They are costed like any other talent tree.
It's definatly doable for a starting PC, but your stats or skills will be lower for one trick that dosnt seem super reliable (except for ongoing powers - those seem good.)
That's my understanding as well. You don't choose to be a force-user, but you can choose to be force sensitive from one of the other classes. You choose a class, and one of the three specialties under that class as your base. If you want to choose a second specialty, you can take one from your career class for 5 points, one from another career for 10 points, or the force tree for 10 points as if it was an outside of career choice.
Humans, if I remember right, can take a second specialty for free during creation, but you don't get any of the class skills or talents for free. You just don't have to pay for the second specialty.
I really like how they're handling force powers for now. Yes, you can be force sensitive and have a few abilities, but as a starting character, I'm not sure yet if I'd recommend that since you'll be shorting yourself on other abilities that could be more critical to your career choice. But I haven't made any characters yet, just read through it, so I may be wrong on that.