RE: Entertainment Center and TV's (question!)
Can you lock the doors to the entertainment center at all? That might be the easiest solution. We put a strap around our entertainment center so that Sarah couldn't open the doors. But honestly, I'd be more concerned about Lauren damaging your electronics then her pulling the TV down. UNLESS she happens to be a climber (which you have no way of knowing yet). If she is, then I'd cross that bridge when you come to it.
HTH,
Beth, mom to older DD (8/01) and younger DD (10/06) and always missing Leah (4/22 - 5/1/05)