
Hi tigertiger
Hessonite make lovely show leads for goldens. The one I use on my pale golden is the Leather Slip Lead with Swivel in cream and it blends in really well. My friend prefers the half leather, half braid one, but I don't think it hangs as well.
With regard to a DVD, the Stanroph video is OK, but very basic and I didn't really feel I learnt much from it. The one I found the best was Handling Showdogs the Hurley Way. Although it isn't specific to any breed, it does cover a lot of the basics and ring etiquette. If you need a DVD on trimming, the best one I found was by Jenny Frankland Mace of Purbarn Golden Retrieviers. It doesn't appear to be on her website though, but I am sure if you rang her she would sort you out with one.
Good luck and welcome to the breed.