I considered the Paddy Hopkirk ones for mine but thought they looked fairly unsightly.
I opted for the original equipment Range Rover Sport bars (part number STC50252)
They were just over £100 for the pair (iirc) and an added bonus is that they are aerodynamically designed so they dont howl at motorway speeds!
Just to update this post, the LR kit is now discontinued.
However, Thule Rail pack (761) and foot kit (4304) fit a treat, look great and seal well with the roof so no whistling. About £100 from Halfords and a doddle to fit.