I have just purchased a Marantz universal remote control and I haven't got a clue how to program it.... Do I really have to learn every button on my existing remotes or can it be done over the computer? Can anyone help me please?

The equipment I have is as follows;

Plasma screen: PDP 434PE (Pioneer)
Media reciever: PDP R04E (Pioneer)
Sound reciever: Yamaha RX V800
CD Player: NAD C542
DVD: Denon DVD 2200
Sky digibox sattelite

Thanks, John

PS: Is the Marantz RC5400 any good?