NatWest. It's an "Advantage Gold" account. Costs £12.95 per month, but I get mobile phone insurance (with accidental damage & water damage IIRC), travel insurance, and other stuff.
Other banks do similar things.
Can be a rip-off, can be good value... Depends on if you use enough of the "extras".
Have you looked at what your network offers? I just used O2's insurance thing before I changed bank accounts.