Security is the least of my concerns, given where I live. What is of concern is the many computers and devices I have to reprogram if I change the WEP key index in the router. Some of these are from people who visit occasionally, so each visit there will be some new drama to deal with.
If someone who knows from Roku tells me "WEB Key index <> 1 is NOT supported" then I will bite the bullet. As it is, their support was horrible, but I was hoping one of their more knowledgeable techs would respond here.
A simple "no" or "yes, here is how you do it" would suffice.