Barrett,
One trap you will face is the age at graduation from flight school. There are waivers for such a thing, but there are no guarantees when it comes to waivers. If you can manage a successful veterinary practice, you will have all the money you need to get your ratings on your own (through ATP). Call and speak to personnel types/recruiters at the USARC (located at Fort Bragg), and/or the ARNG at whichever states will be viable for you. I fly with a lot of guys who were suckered in to enlisting in the Army (Active/Guard/Reserve) with promises of a flight slot that never materialized. Unless you've got a real hankering to fly a helicopter, I'd advise you to do this on the civilian side (probably faster, and fewer traps). Good luck.
Spike