Melbourne. The expansion of the YarraBanks congress district will cost 600m euros. Its heart is the new convention centre, which is connected with the Melbourne Exhibition & Convention Centre (MECC) and features a 5,000-seat auditorium, 32 rooms and a foyer for 11,000 people. Ten major conferences locked in for the new centre between in 2009 and 2012, which will bring 16,500 delegates whose spending is worth nearly 52 million euros to the state. www.mecc.com.au