Yes, Information Security was one of my main picks for how interesting it sounded. Change is good, however, would I need consistent schooling and certificates to keep up with this field?
You shouldn't no, so long as you keep up on the new technologies you'll be OK. Generally speaking, when you're in the trenches you're learning the new stuff just by having it come up in what you need to do. Good companies will pay for you to get any formal education on new stuff if it ever becomes required.