Re: Meanwhile, on BT Infinitesimal
+1 for Draytek. My three-year-old 2860VN+ is still getting firmware updates with major feature upgrades (they just added DNSSEC checking for the ISP DNS servers, for instance).
And if you buy the Vigor AP900 range of wireless points, it can be centrally managed from the Draytek router.
Never had a problem, upgrade it regularly with new stuff, handles all kind of stuff and has features that I've never seen on other routers in its price-class.