SIMS  3 CHEATS!
Cheat Console:
Press [ctrl]+[shift]+C to open the cheat console and type the following to turn cheats on:
testingcheatsenabled - testing cheats on objects
Use this cheat above to enable all of the cheats.
Cheat Code - Result
help - Display most cheats
Kaching - 1,000 more Simoleons
Motherlode - 50,000 more Simoleons
shazaam - +2,500 lifetime happiness points to active Sim
freerealestate [...]

Well ladies and gentlemen, it looks like our predictions were correct – the staff at EA have followed their previous cheat commands for the Sims 1 and 2, to give us the classic ‘Kaching’ and ‘Motherlode’ sims 3 money cheats.
>To use these cheats it’s quite simple, just load up the game [...]