Have FiOS at work and home.
At work, its a ethernet hand-off. Plug it into your firewall and you're done.
My home installation comes to a box on the side of the house as fiber then coax into the house. I had to purchase their router for like $100. For the tv, you rent their equipment. If i remember right, the dvr is 15 bucks and a standard hi-def box is 9 bucks per month.
I looked into purchasing my own receivers but verizon doesn't sell them. Tivo receivers work but from my research it takes years to start actually saving unless you get a sweet price on used equipment that hast lifetime service. You still have to pay 5 bucks to verizon for a CableCARD to use a tivo.