Need help with Bridge Mode

[Balanga]

I've just managed to replace my EE supplied ADSL/modem/router with a D-LINK DSL-2640R which apparently offers Bridge Mode.

Can anyone give me a hand getting this set up with my pfSense box? I was previously linked up to the Internet via a Virgin Media Superhub running in Modem Mode. I'm not really familiar with how to set up Bridge Mode.

Would I be better off installing DD-WRT or Open-WRT on the D-LINK box?

Now that the Superhub is spare, can I configure it as a wireless access point?