These are what i've got on mine.
Just need a good polish now and then, and they are fine.
I'm in the north west too, where its p!sses down every other day, and apart from the usual brake dust
building up, they've been in good nick.
I use this turtle wax stuff to clean, makes it really easy. Not a fan of turtle wax, but this is really good. Just brush it on, and wash it off. Robert's your dad's brother! :D
Just found a better pic. Chromes really do make the car look good!