If you served in the Armed Forces after 9/11 and got out you should check this out.
A max. of 36 months paid tuition depending of the months you served.
I got mine approved and already started my MBA. Taking my third class in Jan 2010.
BTW, the 9/11 GI Bill is paying for the Z.
For more info go to:
Welcome to the GI Bill Website - U. S. Department of Veterans Affairs