PCI Wireless N + AP/Monitor Mode?

I have a HP Thin client that i'm trying to convert to an Access Point... it has a PCI slot, and 4xUSB1.1.... USB 1.1 is 11Mbit/s, which is like the wireless-b standard..

thus, the only way to get wireless N speeds is to use a PCI card, or get a PCI->USB2.0 or PCI->PCMCIA card and use a PCMCIA/USB wireless n dongle

because i'm going to use it as an Access Point, it has to support AP/Master mode.... PCI cards seems to be the easiest to use/antenna-upgrade compared to USB

according to http://linuxwireless.org/en/users/Drivers , ath9k/Atheros seems to be the best bet to find such a device/chipset with the support i need

i've only been able to find TL-WN951N and DWA-542 to be an Atheros PCI n card... anyone able to point me to other cards?

Belkin N1 PCI seems to support Monitor mode, but that's all...