Im not a big fan of using a pump or a semi auto shotgun for home protection in general. If I were to use a 12ga, I'd load it with a factory made LE/tactical shell like those marketed by Winchester, Federal, etc.
00 buck is good but may be hard to control in a high stress, chaotic event like a home invasion or break-in.
Delta Force, www.DeltaForce.com
sells different 12ga loads with special features but they may not be "street legal" in all areas.