This may or may not work on the wii version but, On the SNES version there was a cheat to give you $9999999. This was how it was done. Wait for the budget plan in december to pop up. Hold down L and R and don't let go until I say you can. Lower all funding andthe Tax Rate to 0%. Close the budget window and open it again this time raising the funding to 100% and the tax rate to 7%. Close the budget window. NOW YOU CAN LET GO OF "L" AND "R". You money amount should now amount to $99999999. You can repeat this every time it runs out giving you the ability to do cool things like use tracks instead of roads and use Nuclear Power instead of Coal plants and having 0% TAX RATE!!