I had an idea, though, that would throw this guy's hate back in his face.
I'm going to go to the Matthew Shepard Foundation and make a donation in Mr. Rogers' memory. I encourage all of you to do likewise. Not just because Fred Phelps and his Westboro Bigots would hate it, but because I bet Matt Shepard and Fred Rogers would be pleased, and besides, the Shepard Foundation is a wonderful organization. Take a look at the site, and you'll see what I mean.
So yeah, donate. It's a way to get back at the hatemongers and it's good Karma, besides.
Edited to say I did it and I bought a T-shirt too! w00t! *does "getting back at the arseholes" dance*