Need some help looking for effects pedals?

I'm looking for an effects pedal or other effects equipment that can be used on bowed instruments; more specifically, I'm looking for something that includes effects like wah-wah, reverb, distortion, and overdrive (and even more would be nice) and is on a relatively low budget. I'm having some trouble searching for these things. Also, does anyone know where I can find information about the Zoombox effects device (it has hundreds of effects)? I know they're out there and I've heard they're quite good, but I have not been able to find any information on them. Thank you in advance to all who reply.