One comment that I should have put in my earlier reply -

If you are planning on making the military a career in order to get a decent retirement - don't. If you are fiscally responsible and willing to work reasonably hard, you will have a much better retirement in your older years.

I am much better off financially than I would have been had I stayed with the USAF for 20 - 30 years. (I still enjoyed the time I was in though.)

Cheers,
Wes