Amongst a swathe of other "[Win]" security alerts from AusCERT, this one stands out:

AusCERT Security Bulletin: ESB-2009.1267 - ALERT [Win] Windows TCP/IP: Multiple vulnerabilitiesProduct: Windows TCP/IP ( Read more... )

Oh hi. I forgot to mention. Macs are awesome. Your next computer should be a Mac, assuming you just want a computer where you can do general average day to day stuff and Get Things Done ( Read more... )