I know the iMacs are at the end of their cycle and new ones are expected to come out soon. Which I have been waiting for but last week a friend of mine told me he was selling his iMac that he bought in november for a MBP. It is a 21.5 3.6 ghz 4 gb of ram and the ATI 512 video card w\ microsoft office for 1400. I'm deciding if I should buy it since that iMac with office is about 1900 new. But with the new ones due out in a matter of a month or so will this machine be a huge downgrade compared to the Sandy Bridge chipsets and upgraded video cards. My main uses for iMac is normal school things powerpoints, papers light video editing. Some gaming but I have never owned a Mac so I'm not sure how it will perform if I bootcamp and use windows for gaming. If i add 4GB of ram would that help much? I do need a computer asap for upcoming projects. Any feedback would be appreciated.