Is anyone going to vote in them this year? I think all you need is membership to 2012 Worldcon (Chicon) and there's a rate for those not attending (like I am.) Truthfully, I bought it so I could vote for where 2014 Worldcon will be (I'm hoping for London) though now I'm interested in the Hugos.
For the ticket price, 'To help you make an informed decision, we're offering you the opportunity to see, hear, and read the nominated works.' - so you get a copy of everything nominated (I think?) which is listed here: The Hugo Awards : 2012 Hugo Awards
More information is here: Chicon 7: Hugo Voter Packet