Easy money:

     Note:  This  procedure  involves  editing  a  game file; create a
backup copy of the file before proceeding.

     Use  a  text  editor  to  edit  the  "house.txt" file in the "\ea
sports\fifa manager 08\user\objects" directory.

Change the very last line to: 
Palace,Palais,Schloss,Palacio,Palazzo,Palac,-1200000000,palace.bmp,2005 

     By doing this, when you buy the Palace you are given nearly ┬г900
million into your personal wallet (which can be donated to the club).