"totally redesigned"? not really. the iMac is a great machine, the new ones are the nicest versions of this line so far, but this is not a total redesign,..
Switching from Bondi blue plastic with a CRT to an LCD panel in an aluminum case on a pedestal was a total redesign.
The new version of the iMacs are certainly sweet computers, but I think I will hold out for one with a thinner edge.