thanks for the comments - tank is pretty much full in terms of fish now, although I do plan to add a goby (amblyeleotris/stonogobiops sp.) plus alpheid shrimp to finish it off.
As for corals, I am still seeking several different types of softies and lps, although its hard to get smaller specimens around where I live. I fancy having a go at sps too - these will be sited in the top 6 inches of the tank, and I will then begin to drip Kalk to replace evaporation overnight.