Neville, I know there is a lot of holding for BN but I'm not sure how many days there are with 1hr holds in cavok.
Regarding movements, BN is 3rd busiest in Oz, just behind Melbourne. Throwing in the ex-GAAP fields like Moorabin, Jandakot etc who rack up thousands of circuits with bugger-all traffic above 7000kg, to prove that BN isn't in the top 5 Australian airports is comparing apples and oranges. BN did 198000 in 2011 and will likely be 200000+ in 2012.