The sportswagon in Australia is only available with a 2lt petrol engine.. I really think fair priced diesel engines are a huge advantage for Hyundai, certainly was the main reason I went to Hyundai..
I also wouldn't have minded even a 5 speed auto in the SLX i30cw 1.6 diesel to improve the efficiency of the autos, 4 speed autos are so 10 years ago ;-) I believe the SLX cw 1.6 diesel isn't available in manual at the moment, so the 4 speed auto is the only option if you want the SLX features, unless you get the 2lt petrol sportswagon (same price I think)..
CVT would be a decent alternative too..