The router also hooks up into my TV, so not sure if possible in my situation. However, the FIOS router is exceedingly horrible - the wifi signal is very poor, and I almost never get the rated speeds using it.

What I've ended up doing is hooking up the ASUS router via LAN to the FIOS router and connecting all my devices to the ASUS. Every single complain is fixed going this route.

Yes, but it will require a call to Verizon to enable the CAT port on the fiber terminator box in your closet. You also need to set it up properly to keep Pay-Per-View and TV Guide working.

http://www.dd-wrt.com/wiki/index.php/Verizon_FIOS_setup_with...

Yes, you certainly can. At my last place of employment, I built a custom BSD (packetfilter) based router using the nice multiport gigabit intel NICs. We had static IP configuration, which meant all I had to do was put the default_router and standard interface configuration into /etc/rc.conf and, as they say, voila, internets!

It can be done. I'm doing it now. It's not cheap, though, as the FiOS router is actually 3+ devices in one: a MoCA adapter for the uplink on channel C, a MoCA adapter providing networking to the cable boxes on one of the D channels, and a regular wireless router. In order to remove it without plugging into the RJ-45 port on your ONT, you'll need all three parts. Additionally, the ch. C uplink is encrypted, so you need to grab the encryption key from the router (available buried somewhere in the web interface). I picked up a Netgear MCAB1001 kit and it's working quite well.

Not if you have FiOS TV and want access to On Demand and similar features. The router connects up to the TV and not through a network cable. However, I've had no issues getting exactly the 50/20 speeds I signed up for with their router.