I have one that I am looking to get rid of, rather cheap. It is a great pedal, but it doesn't go well with the rest of my gear. Private Message me and we'll talk.
I really don't want to foul up any trades here, but have you tried one out in person? I didn't before I bought one, and it turned out to be really noisy. If you don't use extremely high gain settings, it's not too bad, though.
I've not used the TriAC but I've fiddled with plenty of Tech21's stuff and ALWAYS been impressed by their products. Hearing clips and reading reviews of the TriAC make it seem like it's worth it.
And I've been getting away from high gain these days anyway.