Which Airport card do i need? - iMac G5

[PhelpsiPhan]

Hey guy i was wondering if you could help me, i just got an iMac G5 for free (all it needed was a HD replacement!) but it doesnt have airport or bluetooth

Now i dont really care about bluetooth, but having an airport card would make things soooo much easier

Its the 20" G5, Non Ambient light sensor, Non isight (the first one) 1.8 Ghz

Can anyone Help me?

Thanks

Jonathan