How to protect a home when away in winter?

kidMike writes: I just accepted a new job in another state, requiring me to relocate. I'm going to keep my house in New England. As I watch the winter storm problems and electrical outages across the country, how do Slashdotters protect their houses (or cabins?) when they're away in the winter? Is there a device that will call me if the temp in the house drops below a certain level? How about a broken pipe flooding the house? How can I keep advised of problems happening hundreds of miles away? (There will still be broadband at the house.)