There is tuition assistance - of about $15,000 over three years. You then have an obligation of four years if you accept the assistance.
with your committment you can also pick either ground or air and it would be guaranteed since when you decide Air they qualify you for flight school then.
You also get paid for your summer training and a tax free stipend.
After your first summer training you get a monthly allowance.
The most popular route to being a Marine officer is through PLC.
go here:
http://www.marines.com/page/usmc.js...eName=Platoon-Leader-Class&flashRedirect=true
It isn't a whole lot of money if you are looking at a $40,000/year school - but it's something.
You would want to talk to a Marine OFFICER recruiter. You local Marine recruiter can put you in touch with one.