ISP Issue
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My dad uses a similar service from Cox Cable in Arizona, and he is happy with it. His phone number followed him from the RBOC. He has a converter box outside the house that converts the cable signal to an analog signal that hooks to the existing phone wire in the house. Pretty easy.
I have one issue (and I always have an issue) with using cable broadband instead of the ADSL line procured through work. I have no restrictions on how I can use my connection, including setting up web connected services. Long time readers will remember that I have setup an IMAP service that I can access over the 'Net, and that I have a PHP program that provides webmail running on a University server. I've been told that most commercial broadband providers, including Insight, filter incoming traffic to block web servers and other servers. I guess that I could try using an outside server for email (such as my domain provider), but we like having the email server in the room. Luckily I have time to think about this