While playing, hit ~ to bring up the console. Then type in "DebugMode 1" without the quotes. You may then use the following codes. (Note that all codes are cAsE sEnSiTiVe.)
Cheat--> Effect
givexp #--> Gives the desired amount of XP to your character.
irolltwenties 20 in every statistic.
givespell #--> Gives a spell identified by it's id number to the character.
SetCHA #--> Set charisma to given number.
SetDEX #--> Set dexterity to given number.
SetSTR #--> Set strength to given number.
SetWIS #--> Set wisdom to given number.
SetCON #--> Set constitution to given number.
dm_god--> Godmode. Unsure if it actually works, but it does not return an error message.
dm_givegold #--> Gives # amount of gold to player