I am looking to buy a PC to last me a year. I am moving from Aus. to the US at that time, so I won't take it with me. I want to use it for browsing, uploading MiniDV data, iPod, copying DVDs. I need firewire and USB2. My old system was 2.6Ghz, 512MB, DVD dual layer burner, 15" LCD. I gave this to my sister. OK. So my specific questions are: 1. New or used? 2. Do I need 1GB+ of RAM, or will 512MB suffice? 3. Is it worth spending the extra for, say, a 24" LCD compared to a 20" LCD? I have been looking for a few weeks and getting totally confused. Your help is genuinely appreciated!