Thanks for the input, but connecting router 2 to router 1 is what I'm trying to avoid.
Yes, I am paying for only 1 service plan.
The Verizon tech drilled some nicely hidden holes for the coax cables in the PC room and the HTPC room. Coax is the only way I can connect each device. I can't run a giant Ethernet cable across 7 rooms to plug both routers together
You can't have two coax WAN connections. If you try that the two routers will fight each other for the single WAN DHCP lease.
Use the »Verizon Online FiOS FAQ »Can I get an ethernet connection in a room with only coax? instructions that birdfeedr linked earlier. They allow you to connect both Actiontecs to the coax, but will disable the WAN connection on the second router. The two Actiontecs will be connected LAN-to-LAN. The second Actiontec becomes a MOCA LAN bridge, a switch and a WAP. -- There are 10 kinds of people in the world; those who understand binary and those who don't.