Most (all?) of the nominees for the 2010 Hugo awards are available in the electronic voter’s packet. You will have to be a supporting member of this year’s worldcon in order to vote, and that will cost you £25 or Aus$70. However, even if you’re not attending, you will still get your money’s worth from the packet. John Scalzi has listed the contents here.
Of course, if you are going, all the better. It’s in Australia this year, in case you hadn’t already worked it out. That’s why it’s called Aussiecon 4.