I am in the market for a new top-of-the-line iMac (24", 3GB RAM, 750 GB HD, 2.8GHz) but am unsure if I should make the purchase now or just wait until after Macworld (January). A couple of things making me consider waiting: 1) Screen problems current iMacs have been experiencing. 2) Blu-Ray coming soon? 3) Processor and graphics cards speed bumps coming? Do you guys think the iMac will be updated at Macworld? If not, when do you think it will be? And when it is... what do you expect the changes to be? I am so excited! I don't know if I can wait!