Okay so I want to buy some kind of desktop Mac. I want to do lots of video editing, podcasting and quite a bit of gaming. It'd be nice if I got FireWire 400 - but that isn't necessary. I also want it to be $2000 or below in Australian dollars (don't know how to convert that ...) Any recommendations? Also, what are these 'refurb' macs people talk about? Is there somewhere in Australia I can get them - and would you recommend one for me or not? Thanks!!