Get any documents that you will need (police clearance certificate, marriage certificate etc) attested before you move out. You can do it from here but it's more hassle.
Also, set up any savings accounts, ISAs etc you think you may need as once you're out here you'll be unable to set stuff up as an expat.
On top of that, if you have a shipping allowance bring as much as you can - particularly boks, CDs, DVDs etc. I brought just a couple of boxes and have since had to buy stuff which I had left in storage at home.