So, I've just come into some money, thanks to an arts scholarship that I've won. How exciting

Anyway, I asked a while back about recording gear, and the M-Audio Firewire 1814 came highly recommended.
So, I've got a few questions about it. How is the unit powered? I ask because I'm from Australia, and don't want to order one from the US, only to find that it won't work over here.
Are there any alternatives that I should be checking out? Anything cheaper?
And finally, any opinions on the unit would be greatly appreciated!
Thanks in advance.
-Riley