Seeking WiFi card supporting hostap

Can anyone point me to a PCIe (or possibly USB) WiFi NIC that supports 
hostap, that I can actually buy? Link to Amazon UK or similar appreciated.

I believe the best choice may be something based on the Qualcomm Atheros 
AR9380. Finding a card for sale that says it's base on this chip is, 
however, proving difficult. They're all "super-fast" or "mega-fast" or 
"ultra-fast" but the silicon doesn't feature in the description. If you 
know of a card but you're not sure it will probably be connected using 
the ath driver, or run ifconfig and see if HOSTAP is one of the flags.

Any pointers much appreciated.

Thanks, Frank.