On a similar, note. For those of you who spend a significant amount on long distance, check out Vonage. They have a IP telephony system that functions extrordinarily well for $39.99/mo. unlimited LD. It basically involves adding a Cisco ATA-186 IP telephony adapter to your home or office network (broadband required) and you attach a regular phone to it.
http://www.originateit.com
Sorry for the SPAM, but it is a cool service.