You probably already saw this post, but LtDan put together a pretty comprehensive list of the components needed in a DMM DYN4 servo setup. Thats definitely been an assist to me in planning out my cabinet. 240v AC is what we have in the states, so components should be comparable.
http://www.cnczone.com/forums/dmm-te...23202-cnc.html
Read the fine print on the DYN2 drives and the 750w servos. RPM is 2000 with DYN2 drives vs 3000 with the DYN4 drives. DYN2 requires a DC power supply while the DYN4 does not (internal components are rated up to max 300vAC per documentation). If you do a cost analasys it would be worth seeing if the cost of a PSU brings the DYN2 drive setup up to the cost of a DYN4 setup. Just an FIY, in the states you can source the PSU DMM sends in their kits for significantly less then DMM is selling them for. If you go the DYN2 route see if you can find one sold locally in Australia.
MeanWell SE-1000-48
From what I have observed power supplies for CNC systems are not rated at the full load power requirements for the whole system. The assumption is that you will never have all axis motors maxed out.