V1, whereabouts in CT are you? Unfortunatley, there's no NG available where I'm at (Killingworth). Oil is running $3.60ish last I checked. Put a wood burning insert in our fireplace last August and have been burning wood for 80% of our heating requirements. The rest comes from a small propane stove we put in our den about 3 years ago. I did buy the tank at the time for about $500 which I thought was high, but my cost per gallon of LP is wholesale + $.65 whereas renting was wholesale + $2.00. Figure I'm money ahead in about 2-3 years easy.
Your NG furnace install intrigues me as we've been in our house for 22 years and our oil furnace is rated for a 20-25yr life, so it will be coming due soon and when the time comes, I'd like to be able to go NG. Still use our oil furnace for hot water so I can't get off of oil completely (yet).