Since Adelphia Power Link doesn't offer static IP addresses (as I had with @Home) and the DHCP lease durations on these addresses are relatively short, I don't have any guarantee that they won't change at some point in the future. This is a major bummer and will probably serve as the primary reason switching to DSL (with static IP addresses) in the future.
For the time being anyway, I've submitted a request to have the DNS records for the above hostnames changed to the addresses above and let's just cross our fingers that they change any time soon.
cvs.synchro.net is off-line until I have time to resolve the DHCP problems I'm having with that system (Linux).