GMAT AND SCHOLARSHIP

Hi friends..
   i am a new one to this group...i think that i can get some starting
help and tips in this group...
   my first question is that is it possible to get full financial aid
in a business school in USA...
   I am currently a ph.d student in USA and have thoughts about giving
GMAT in coming year...

any kind of suggestions will be really appreciated ...
thanks
NITIN