Best Wifi adaptor for Access Point

Hi,

I would like to use a USB Wifi adaptor with my BeagleBoard XM rev C,
but to act as an Access Point (infrastructure mode). It can be 802.11g
or n.

Do you have any suggestion? Which device would fit these needs and
would work easily?

Thanks!

I'll second that request.
Please add inexpensive to the list.
I'm using a console-only build of Angstrom from Narcissus on my
BeagleBoard XM rev C.

Cheers,
Akhil