...
Well, I've figured out a solution to the PC problem with my brother.
I got a PS3 hooked up in the same place as the Wii; I managed to fix it up so I can have both of them on, and online, at the same time, and I can switch the screen between them by swapping one little wire. 'Cause I'm awesome like that.
Didn't realize until just recently that the PS3 has a built-in internet browser; just to test it, I came here on it yesterday and logged in, though I didn't post anything.
So now, we can Brawl and chat at more or less the same time, and to hell with my brother.