If you like grey skies and rain - and hate the sun, don't come, Seriously. Some from the UK have had difficulty coming to terms with the lack of rain. We can go months without any. They miss the rain. My rain coat which I bought 6-1/2 years when I started this job hasn't been out of my briefcase since it was put in there.
If you are at all unsure, and you own a house in the UK, you could rent it out and move here for a trial period of, say, 3 years.
I guess problems may arise if you still have aging family back in the UK. One of the chaps from here (Disco Pom) recently had to move back because of ill in-laws.
Google "A Place Down Under" - if you can source the TV series from your local library it would be good. I don't know if you've seen it but it follows a number of British families who moved here in recent years. See also the forum at British Expatriate Community : British Expat Community
Regrettably, most of the LR parts suppliers here really haven't got their act together that well for on-line ordering etc. But there are a quite a few around, e.g. British Four Wheel Drive (advertiser on this forum), Davis Performance Landys, Graeme Cooper, KarCraft, Rovacraft, Four Wheel Drives, British Off Road, etc. I don't know if the big supplier of LR parts, British Motor Imports, sells to the public or is just a wholesaler.
The LROC in Sydney run an annual event called LR Expo (Google it) - LR Australia attend this. The LROC in Victoria also run a 4WD event. There are some 4WD, Caravanning, and Camping Expos held around the country but LR don't participate at all. LR sales in this country are so low that smaller accessories are hard to find for them. There's nothing available for us P38A owners. :(
Everything is aimed at the big two or three - Toyota, Nissan, and, maybe, Mitsubishi. I think Toyota sell more Prados in a month than LR sell total in a year.

