Not sure how to put this...
When I set up my mr814 on my new DSL I went with not broadcasting the net's ID and restricting it to my AP card's MAC address. I left WEP off as I didn't want to take the performance hit.
Now I wonder...
Is the hit restricted to the LAN side?
I mean, is the crypto done in the router hardware? How bad is the hit? Since DSL (1.5 mbps) can't come close to even real-world 11.b specs of ~5mbps, does WAN throughput really drop with DSL. I could see it slowing a really fast cable or 4-5mbps DSL connection, but generic 1.5mbps?
Obviously, I haven't had time to think much about this, so flame away.