These are the most useful cheats. Push CTRL-SHIFT-ALT-C and a little window will pop up. Type the code in the box and push enter.

i am weak

Makes lots of things free.

call cousin Vinnie

Can only be used once. "Local Fundraising Event" will show up in the advisors window. Select it and Vinnie will underhandedly give you some money. I think it's $100,000.

nerdz rool

All new industrial buildings will be high-tech with very low pollution.

zyxwvu

Gives you the Simcity Castle, but first you have to decline Vinnie's offer. It increases aura and land value and looks cool to boot!

Access all buildings cheat

All the cheats.