We have just released the Mac OSX version of the K3 Utility program for downloading K3 firmware. A big thank you to it author, David Fleming, W4SMT, who put in a huge effort to get it done. Thanks David! It can be found at: http://www.elecraft.com/K3/k3_software.htm 73, Eric WA6HHQ (And the power is back on in Aptos. :-)