Locks that work

Steverino, I'd stick with the Abus 59. I believe there is no better lock. But I'd combine that with a disc alarm, and remove the front wheel, and or, attach it to the rear wheel for most secure locking.

Of course this is my recommendation for locking up in London. It would not need to be as severe in Durham for example.

Thanks GA2G, I'll stick with it then, and add a disc alarm if I find a cheap good one.

I think its large 'back to the future' factor must be a bonus though!

Great Scott Marty! It does look nice, but I'd be worried that it would attract attention in the wrong way "Look at that funny thing, it doesn't look strong, let's have a crack at it" - rather than "Jeez, look at the size of that lump of metal, it'll take ages to get through that." It doesn't look like the shape of the casing allows for a particularly thick shackle underneath.

I'd also be concerned that the casing would get tatty of fall off, even if the lock underneath is sound.

I've also seen price suggestions at $150 ( ~ £95), at which point it becomes very likely that there will be many better locks around for the money. For that money you could probably get a couple of very decent D locks, and maybe even accessory locks if you shop around.