I think I'll just stick to WEP. Getting that up and running could not have been simpler.
I only let known MAC addresses on my on the wireless anyway.
I think I would notice someone parked outside stealing my internet. I don't know why they would do that anyway when there is a Panara Bread with free wifi not far away...
WEP also couldn't be simpler to crack, nor could MAC address filtering. Even WPA isn't very secure. It just takes longer to crack.