[azasadny]

Steve,

I would put my $ into new windows, doors and attic insulation before I would go to the trouble and expense of insulating the walls. Others here know more than I do, but in my house (built in 1936), I got the "biggest bang for my buck" by replacing the original leaky windows with new insulated windows, new foam-filled steel doors, new weatherstriping, sills, etc... and foam in place (FIP) insulation in the attic. I paid particaular attention in sealing up my basement, especially along the rim joist and any leaks into the attic. Think of your house like a large chimney, with cold air coming into the house, pushing the warmer air up and out of the living space. Crawlspaces are notoroius for letting cold air into the living spaces. Just my .02 worth. Good luck!