I am considering to replace my iMac-G5 20 inch with a more powerful model. I was planning to purchase a new 20 inch model (2.4 GHz Core Duo 2) when I suddenly realised that MacWorld will take place mid-january. This is the time when new products are announced. I realise that all moments are always good moments to replace a computer, but I am in no real hurry as all these electronic devices cost a lot of euros. In your opinion, is an update to the current IMACs realistic?