I would like to upgrade to grounded outlets throughout the house. The service panel (with circuit breakers) is in the attached garage, however the walls are finished so its not clear how the wiring enters the rest of the house, but I'm assuming its through the ceiling. The ceiling has about 4 inches of blown insulation. I've climbed up there, and did find some wiring, but that wiring might only be related to hall lights.

I haven't been able to find out if/where the wiring runs down into the walls.

I was thinking of fishing new cable down the walls to the new outlets. In places where the outlets are under a window, I'll replace these with two outlets on opposite sides of the windows (these windows are 7 feet wide).

In the garage, I've removed some drywall. I discovered horizontal braces between the studs. I'm assuming these are used throughout the house and will be a problem. To make a hole all the way down, I figure I'd get some sort of drill attachement and work from the attic. Though this will be a problem near the outer walls as there isnt much attic space.

The walls are plaster over metal lathe; opening up the walls would be a _big_ project that I'd like to avoid. It occured to me that the existing wiring may be in the crawl space. I haven't checked, and it doesnt make sense to me. Am I right?

So.. how would you go about re-wiring an older home?

jeff