[Update June 2009] The following account might still be useful, but I don’t think the DPH548 is available any more.  I would now recommend the NetGear MCAB1001 Adapter kit, which Amazon is currently offering for $180 for two adapters.  It gets very good reviews. Someone reported problems getting it working with FiOS, but according to a comment below: “I’m Chris Geiser, the Product Line Manager for the NETGEAR MoCA bridges. The MCAB1001 works fine on the Verizon FIOS network and has been extensively tested.”