Welcome to IW daggerblade backstab [img]graemlins/happydance.gif[/img]
In order to cheat [hangs own head in shame] you need to open the file called baldur.ini in your BG2 directory and add the following text underneith the line 'Program Options'
Debug Mode=1
When playing, press CTRL + M to enable the CLUA Console. From here you can change/add almost anything if you know the code. There are many places you can look for them including the Ironworks site.
Mikes RPG Centre is another good place. You might want to print them out as there's thousands of command options.