The "old school Motorola" device is MoCA bridge. It will provide an Ethernet port active on your LAN anywhere you have coax. You'd then need to plug a WiFi access point or router into the Ethernet port.
Or, you could pickup an old Actiontec WiFi router online and use it as a single bridge and access point.
There are lots of discussions of how to do this in these forums. Spend some time searching and looking around and you'll find them.
You might also find this FAQ helpful:
http://www.dslreports.com/faq/verizonfios
Good luck.