Airport Card query

Hi,

I'm in the UK and have bought a BT Home Hub wireless router. I now need to purchase an Airport card - how can I tell for sure whether I need the old Airport Card or the new Airport Extreme? I have a 17" flat screen iMac, 1Ghz, G4 running 10.3.9

Any other set-up tips welcome! I'm assuming I don't need an Airport Base Station?

Thanks,

Go to Apple's support site here.

Enter your iMac's serial number in the box on the right-hand side of the screen, and you'll get a complete profile of the system and the recommended AirPort card.

According to what I found on the 'net, the BT Home Hub has built-in wireless, so you do not need an AirPort Base Station.

Good luck!