On one of the Law Enforcement Career tracks (the DNA Profiler) You get a laptop.
Chefs get a food processer and a Celsius Refridgerator or something like that.
Military I'm not sure of because I guess I haven't tried that career out yet (I should really try it though).
Doctors gain the ability to tell the genders of unborn children.
I haven't gotten in-deapth with either the business or the journalism career. Actually there are quite a few careers I haven't tried, however I'm sure Carl has a good description on all careers.