Need a PCI WiFi card recommendation

Hi,

I am planning to build a Mikrotik-based system for a small office (under 15 people) and would like to provide WiFi access (b/g) to laptop users.
I have a solid x86 system, with 2 network cards and I started looking for a wireless PCI card using the following link as a starting point:

http://wiki.mikrotik.com/wiki/Supported_Hardware#802.11a.2Fb.2Fg_wireless_cards

However all this hardware on the list is either discontinued or really hard to get (no mainstream on-line retailers in the U.S. carry them).

I would greatly appreciate if someone could point me to a solid WiFi card which would work with Mikrotik to provide access point features for our office.
It would be great if this card could be purchased from http://newegg.com

Thanks a lot in advance!
Tony

Any feedback about this card? Will it work? It looks like it has Atheros chipset, but I cuold not find a confirmation.

http://www.newegg.com/Product/Product.aspx?Item=N82E16833129196

If it doesnt say Atheros, or SuperG it probably wont work. If it is an Atheros chip it will probably work. I’ve used DLink, Netgear, and AirLink cards successfully.

Sam