Greetings, I'm planning to purchase a new Mac desktop relatively soon in replacement of my aging Macbook Pro which currently is used as my primary computer. From what I've seen the 27" iMac would best suit my needs. I use a lot of power demanding applications such as the ones in Creative Suite CS5 and need them to perform well when handling big jobs. What I was wondering about is if now's a good time to buy one being that they were recently updated. I have an upgrade window of about 6 months to a year. Are there any promising features that are likely to emerge in the coming generations of iMacs that are worth waiting for? My primary concern is buying now and then have it replaced with something significantly superior soon after such as with USB 3.0 or Blu ray (both of which I'd very much welcome). Thanks for your advice.