iMac G5:  #147;even more exquisite than last one #148;  #147;This latest head turner manages to better its clever predecessor in design  #151; no small achievement, #148; writes Edward C. Baig for Forbes.com.  #147;The back of the computer is elegant in its simplicity. You can loosen three captive screws to remove the cover to add, say, extra memory, or a wireless AirPort networking card. #148; Sep 30