Yeah, you came here looking for general Gameplay Tips, right? Yeah right!
Anyways, here are the cheats:

down with the demo        Finish the demo pronto
internet fraud rules      Steal 5000 from a random user
com open                  Connect to the internet
swordfish                 Get all login credentials
i don't pay for software  Get all Solid Software Products
overclock                 Get the Hybrid Fusion
evil sunlight             Fast forward to night time   (May take a few seconds)
who needs sleep           fast forward to daytime      (May take a few seconds)
decipher                  Decrypt and Unzip everything on your computer
timed out                 Terminate all admin's traces
rush hour                 Reset the streets with new dealers
administrator             Computer login is no longer required
guest                     Computer login is required