WIREDREALLY LIKES this "absurdly powerful" blender. It seems a bit pricey to me, though, and it won't accommodate your larger blending projects, which could be a deal-killer for some.
UPDATE: Reader John Galvin writes: "That's not a blender. This is a blender."
ANOTHER UPDATE: Reader Steve Ducharme prefers this gasoline-powered model. "It's not the quietest blender, in fact it's as loud as a chainsaw." Vroom!