My 7.0.1/i386 wireless setup, based on a now missing tutorial, is still working. I recall the tutorial provided dhcp vs dhclient options. dhclient did not work for me but dhcp did. I will drag out and post my redacted configs shortly.
I'm using an ralink usb dongle (rum). Replace rum with your driver, ie ath0
/etc/rc.conf
Code:
dhcpcd_flags="-q -b"
wpa_supplicant=YES
wpa_supplicant_flags="-B -i rum0 -c /etc/wpa_supplicant.conf"
I generated
/etc/wpa_supplicant.conf using wpa_passphrase.
# wpa_passphrase your_SSID your_key > /etc/wpa_supplicant.conf
With dhcp you also need.
/etc/ifconfig.rum0