Stromgarde:
This is the case. I can't get a pic of it on since 'Neko has my digital camera, but the button to hit is kinda discreet, but it lights up..Not sure if that'd be "grab nephew by scruff of neck and yell b/c he turned off the pc" yet, but I'd rather be braced for that and prevent.
Toten; I might try finding something to cover that as well. That switch is at the bottom of the pc, so I wouldn't be surprised if he tries to flip it! And I don't wanna go that far as to disconnect teh switch; want to be able to turn the pc on and off. I just don't want that little munchkin ruining a gaming/writing session. (Also I scared my 2 year old niece a few times yelling, don't wanna scare him!)
Aksannyi: Not a bad idea. I may combine it with some kinda bottlecap idea or safety lock, for yeah, kids are smart little imps and figure out lots of things.