@pfsense_noob:
I've got the PC set to a static IP quite high up in the available range (obviously outside the DHCP range for pfSense), so I'd be surprised if that's the case. I'll double double check though. Thanks for the reply!
Hey, I went through it once more on both routers - the BT Home Hub appears to want to be in control, even when you have disabled firewall, DHCP and set its gateway to pfSense's - the wifi worked, but the wired connections routed to the homehub, which they obviously shouldn't.
With the netgear router, after a factory reset and a second try, it appeared to work. Can I ask where would be best to check on the pfSense side of things?