Wireless mouse and keyboard for iMac G4?

Got an old iMac G4 (OS X 10.4.11) but would like a new keyboard and mouse and wondered if anyone knew of any that were compatible with my Mac? If you do I'd appreciate info on where I could buy, thanks.

*Just to add I've just bought a 'Newertech 802.11g/b Wireless USB 2.0 Stick Airport' so I can now connect to my new Sky Hub and have wireless internet on my Mac. Not sure if this helps regarding my above query?