It has some pretty good intro/tutorial screen playbacks to get you going. The evaluation version is a bit limited in number of finite elements (256), but should work for you. Several of the other packages mentioned in the thread have evaluation or student versions.
No i did´t try.
Now im waiting for a evaluation version of Ansys Multiphysics. As i can read, is the best choice but im not sure about the magnet forces simulations in 3D. In a days i´ll tell you how it works. Thak you very much for your help.