I am looking to take the big step from the PC world into the mac world (My iPhone convinced me). i was looking to buy a Refurb iMac. I was just wondering if i wait to buy one until Leopard is released, will that OS come loaded on the Refurb model? or will it be Tiger? Also how long will the previous gen iMac be pumping through the refurb page, i know it does not take long for a new model to reach the refurb page, and i am looking for only a 17" screen. Thanks for the input in advance!!