Now, i know that for most people who will be reading this i'm generally 'preaching to the choir' as far as Howard-bashing goes, but from some discussions i've read and heard lately, there's one thing i think needs to be mentioned.
As i've said before, i'm going for the Greens because their views are closest to my own, and to keep the pressure on Labor not to turn into Liberal clones like they did last time, but one thing i am hearing a lot of folks saying at the moment is that they'd like to vote for someone like the Greens but don't want to take a chance on it letting Howard get back in. Now, unless i've got the House of Reps system totally wrong (and someone correct me if i have), as long as you put Labor second, there is NO WAY a vote for the Greens can help Howard get back in (short of the Greens agreeing to form a minority government with the Libs, which would be suicide). If the Greens candidate doesn't get in, it's like you voted for Labor anyway, and even if a Labor seat is lost to the Greens it still doesn't give an extra seat to Howard, so he's no closer to having a majority needed to form a government, but it could mean Labor has to cut a deal with the Greens to form a government (or at the very least make them wary about alienating the pinko-poofo bleeding-heart vote).
(The Senate form is a bit more complicated - you have to either number all the boxes below the line or trust in a party line, but that's up to you. Edit - Be aware though that voting above the line puts the preferences out of your control and there may be preference deals that benefit someone you'd rather not help get a voice in the Senate, so it's safer to number them yourself.)
Much as i'd like to, it's not for me to tell anyone how to vote (vote green vote green vote green vote green vote green) but at least be aware of the above when making your decision.
Writtenandauthorisedbydarrenstrangeronbehalfofhispinkopoofoself.
Edit - According to http://www.aph.gov.au/house/info/general/index.htm :
"After an election the political party (or coalition of parties) which has the most Members in the House of Representatives becomes the governing party. Its leader becomes Prime Minister and other Ministers are appointed from among the party's Members and Senators. To remain in office a Government must keep the support of a majority of Members of the House."
Reading that ("the political party [..] which has the most members") i could be wrong on the majority issue, though "a majority of Members of the House" seems to contradict that. More research needed, but make up your own minds.
Edit #2 - According to http://www.aph.gov.au/house/info/infosheets/is19.pdf:
"After a general election the political party (or coalition of parties) with the support of a majority of Members in the House of Representatives becomes the governing party and its leader becomes Prime Minister. To remain in office a Government must have 'the confidence of the House' - that is, keep the support of the majority of in the House of Representatives."
Slightly different wording, but leans more toward how i understood it to work. Really should have researched this more closely - anyone who knows for sure, please speak up..