Hello hello!!! I've been contemplating replacing my 2010 3.06 i3 imac with a new shiny one as I was experiencing some sluggish performance In the end I decided that £600 to upgrade to a new imac was not worth it so decided instead to install a 128GB Samsung SSD in an optibay, upgrade my ram to 8GB and fresh install Lion I did this yesterday and WOW!!! £130 well spent.......this thing flies!!! It boots up incredibly fast and my apps no longer bounce endlessly when starting....they dont bounce at all!!! I've put all apps and the OS on the SSD and kept the internal HDD as Media storage Granted....it won't make my handbrake encodes quicker but I do them overnight anyway! For anyone looking o get some more out of their imacs....DO IT!!!