Now, you may know this, but I just wasted two days trying to get my wireless working again. I had some problems and re-did the wireless configuration but whatever I did I couldn't get any traffic to register on the wireless interface. Turned out that I did not have the same case for the SSID in /etc/sysconfig/network/ifcfg-wlan0 that I did on the access point.
Note to self:
WIRELESS_ESSID='TheFoleyHouse' != WIRELESS_ESSID='thefoleyhouse'