If you are running your house without a transfer switch you could be in some legal troubles. In another newsgroup I frequented at the time it was unanimous that the "reverse circuit" is a bad, bad idea. Don’t do it.
My advice if you don’t want to go whole hog on the house, either get a small transfer box, or run extension cords directly to critical appliances (completely bypassing the house wiring).
Thanks for the advice. I think I'll start out with extension cords to what ever devices I want power and later add the transfer switch. What kind of cost can one expect for a setup like yours...excluding the generator.