I want to try an crack a WEP without any clients.

I have a IPW2200 and from what I read it isn;t much use. I can practice on my own wireless router. So what is the best wireless adaptor to get. I have USB (obviously) and PCMCIA.

The reason for asking is that I see many posts saying certain cards can't do certain things. I am using the BackTrack boot CD on my laptop!