@piacc64, the keyboard will work fine as a keyboard however since you have a ppc Mac (like my G5) you will face the same issues with the special function keys (volume controls, eject button, widget keys). The keyboard requires snow leopard for those to work and snow leopard isn't compatible with ppc hardware. If you're still interested then for postage you'd be looking at
International Standard (3-5 days not tracked) £8.26
international Tracked & signed (3-5 days tracked within the UK and signed on delivery) £12.51
@Vnman
postage to Norway would be the same as above