Hey (to Matt) You don't need to worry about any danger as long as there is a power pack between you and the wall socket. 

In other words, if there is a separate power pack which plugs into the wall (you know the sort of things I mean - AKA 'wall wart') and if this power pack feeds the main circuitry via a power lead, then there's no actual mains anywhere in the main circuit at all and you can't get hurt. The worst that can happen is something goes POP. ;-)

Dave J.