Steering fluid leak ?

Morning all, I've been doing some work on my car (Disco 300) for a couple weeks and I've noticed that there is a pool of clear oil by the the passenger wheel and I reckon it's coming from the steering reservoir/ hose, I say this because it's absolutely sopping. I assume I first check the the seals (if there are any?) around the reservoir, then the jubilee clips to the hose and then the hose itself. If it's the hose do I have to buy one from a Land Rover deal or can I get a replacement part from say Halfords? I also need to buy new steering fluid, can I get some straight off the shelf, is there a brand anyone can recommend? I'd appreciate any tips.

Cheers
Al

Halfords won't sell a replacement part but they do sell tubing or go to an LR parts supplier near you. The fluid is Dexron 2 or 3 ATF.