Turbinator:
I've also said that I use WPA2-Personal in the same time MAC Whitelisting is additional.
And yeah. Any statements like "my security is unbreakable" or "your security is good for (absolutely) nothing" are pointless. What makes sense in security is "security risk level" parameter varying from 0 to 100% and which is quite a subjective one.
I have a buddy who got free internet for years due to his clueless neighbors. When they finally figured out the concept of encrypting their network, he had to head down to the local library for his wi-fi. Sad story.
Hiding the SSID may fool the lamers who rely on Windows (or MacOS) built-in wifi finder, but tools like InSSIDer and NetStumbler will find your gear and even triangulate its position by using a GPS receiver. You cannot hide, I see you...