I had Verizon DSL at work and only changed when I moved to a location where Verizon couldn't guarantee or provide DSL. That was several years ago, and I'm waiting for their FIOS to come in. Currently I use cable, which is OK, but expensive considering the service. I give FIOS serious consideration when it becomes available, and then hopefully the cable rates will decrease.
As for ranger's comment on the IP, one should be able to order a static IP address. We can get one for an extra $30/mo on the cable system.
I'm currently helping a friend with his network which is based on a Westell 327W wireless DSL modem/router.
Just remember to keep the documentation, and keep record of username and password in order to access the configuration pages. The factory defaults may or may not work (or may have been reset or changed by whomever). Arrrgghhhh!