Raz - any particular polish to use mate?
Yep, with tyres :)
The guy at R-Tec said to wash them every couple of days, and to polish them a couple of times a week. He also said to watch out for small stone chips etc, which if left unattended, will eventually get bigger and the chrome will begin to flake off.
Hopefully we won't be seeing anymore of the gritters and salty roads!