Data Alliance offers this AP with the Hornet-UB board, with Open-WRT wireless router operating system. Open-WRT is arguably the best operating system for SOHO APs / routers (SOHO is small office / home office)

Has 5dBi antenna and includes power supply.

400 MHz MIPS Atheros AR9331 SoC. 16MB RAM / 8MB flash

High Speed Data Rates
Providing faster data rates of up to 150Mbps and is compatible with legacy 802.11b/g equipment

Advanced Robust Security
Firewall with SPI to protect the internal host from hacker attacks. Wireless security is comprehensive and included WPA/WPA2 PSK

Feature Rich
WDS, Dual SSIDs, Static Routing, QoS and more

Includes Busybox httpd webserver and uhttpd webserver. You can use iptables and dnsMasq to direct all clients to the built-in webserver and resolve all DNS queries to the AP's IP address.