http://www.leonhouse.info/zvex-effects/

What guitar effects pedal should I buy?
I’ve been playing electric guitar for several years now and I want to buy an effects pedal, but I don’t know much about them.
The music I mainly play on guitar is songs by Muse.
At the moment it may be between a Zvex Fuzz Factory, Digitech Whammy Pedal or a Boss me-50, but the most I can spend is around £150 probably.
Does anyone have any advice on a guitar effects pedal I could buy?
Get the Boss me-50. That way, you get lots of effects, including a Whammy and lots of distortion.