I can't believe I don't see Audioslave or Rage Against the Machine. Morello is the king of wierd guitar sounds.

As for the Seagull thingy, I'll give that a try. What I do for a similar sound is just unplug my guitar while my wah is enguaged, and touch the end of the cable on one of my pots and rock the wah around. Something Morello does that I read about. It doesn't work great on all cables, I have Fender Californian cables with gold plted tips and the high pitched frequencies work, but when i rock the wah back, the sounds cuts out. With my cheapo cable, it works great in any wah position. I like to start toe up and rock the pedal forward, it makes this kinda chirping sound when the toe goes all the way down.