I'm having quite a few reliability issues with my current router (Airport Extreme), and am thinking it may be time for an upgrade.

I'm looking for a router with strong wifi coverage, and at least 4 Gigabit LAN ports. It will also need to play nicely with my current Draytek Vigor 120 ADSL modem, but will eventually be used with VDSL and UFB (provided the router is still useful by the time Chorus gets to us).

We stream a lot of video, and have multiple wifi connections at any given moment, so it must be able to handle that nicely.

Reliability and robustness is my primary concern, but I don't have an unlimited budget. It would be nice if I can keep it well under this side of $500.