We used PSS when we moved from London to Canberra.
We only had 5 boxes of stuff and it only cost around GBP230 for a door to door service + AUD80 for customs inspection. It took about 3 months for them to arrive which was ok.
By the time they arrived we thought "what the hell did we bring this load of junk for?" and we still haven't even unboxed anything yet. New start in Oz and new stuff, yay!
PSS were really good for us and would recommend them.
Z