Wpa is better, and even harder to break setups have become extremely vulnerable lately.. especially Linux savvy people, if they want into your wireless.. it only takes 10-15 minutes, the best way to reduce hacking is change your password often. only have your router broadcasting at a power level that's needed for your setting, to prevent over extending your range. and monitor your access once in a while, check connected devices. and if someone that you dont want on your network is, just document the information (ip mac address, names ect) and you can turn it over to authorities. i have had to do it before, while living in texas, had a few inexperienced college kids try to use my wireless network, and they ended up having the cops on there door the next morning. its a scary thing, in most states using someone elses network without permission is comparable to breaking an entering, witch is a nasty crime