I am looking to buy an iMac. There are some deals and offers that expire on September 25. For example: ipod mini with education purchase, same as cash with 'apple credit card', $100 off printer... What is the significance of this date? Should I wait to purchase until after September 25? I dont care too much about the ipod mini, I will probaly sell it on ebay. Will they be enhancing something in the iMac or introducing something new? I can wait a few more weeks. I am looking for the best value. Any suggestions or ideas? Thanks.