Thanks Furry.
As directed I upgraded the firmware on the first router, released the IP on the Actiontec, removed the Actiontec and connected the DIR-890L. Set the QoS and voila! 90Mbps up/down via WiFi.
Updated the second DIR-890L, connected it to the first (wired) and set it to AP mode and I've got a nice, fast connection throughout the house.
Thanks again.
-David