Thanks All - I found a place in Haberfield (Syd) called "Revolution Electronics" that can set it all up in english, replace the DVD, format TV and set the Sat Nav to Australian. I've seen them just finish off another V35 and it all work great. The cost varies from $2K to 3.5K depending on the brand the electronic mods + reprogramming of firmware.
So I reckon, I rather put the cash up for a set of brembo brakes : ) watchya think?