$40/mo from Verizon. They were offering a free modem, free installation software if you did it yourself, a free Ethernet card if you needed one, plus a free camera a few months ago. It depends on competition - our local cable company (Comcast) is really pushing cable modems here, so Verizon actually has to put in some effort. Also depends on how much capacity your local phone company has for DSL. I installed it myself - took about an hour, but most of that was figuring out which phone extension cord was bad.