Optical / TOSLink Cables whats diff ?

[ScoobyDoo]

Ive just purchased a Denon 1906 AV AMP and speaker package and im going to be connecting my xbox360 and media centre PC to the AMP via optical.

Before I order the cables off the net, can someone explain the difference between standard optical cables and TOSLink cables and which ones I need?.

 

[ScoobyDoo]

Thanks for the info guys, will get a couple of cheap ones.