Aww no worry lol. People are safe.

Thats pretty much the same as I said before with Wi-Fi (here or on the old forum), the area where you live certainly affect the choice you need to make for these things.
The problem kick-in for people living in appartment complex and densely populated city.
Then the problem is not
if people can get the signal, but how many can get it.
The only thing that I can think of that would stop the signal is the maximum distance it can travel (if there is one) and the high voltage lines.
I would be sold to these if I could be sure the signal would not cross the electric panel of my apartment. And there is obviously nothing for that in the panel. I don't think its even possible.
Again, I would not be too concerned about that. certainly not a script kiddie attack, it require special hardware. (Which wouldn't be a problem for many of us on the forum including you asbo.)
I would also recommend a
DD-WRT CB (Client Bridge) (uhh. DD... OpenWRT is much better, but for the sake of simplicity, go DD)
And for the more adventurous people, and people that love free software's (free, like "free speech").
http://wiki.openwrt.org/toh/start
http://wiki.openwrt.org/doc/howto/clientmode