Wammy pedal

I have £110 christmas money and therefor i want a wammy pedal... I have seen one that has all of the FX and everthing for £100 and also there is just a wammy pedal for £60. But i tested the normal wammy pedal and it sounded clearer and better. And then i also tried the FX pedal and it sounded crackly on the wammy bit but the sound FX were good cause there is drummin and stuff on it but i only want a wammy pedal. but the problem i face is that i am going to be in a band soon after my last band split up... So i need somet with a drum so that i can rehearse by meself! But can u tell me what pedal to get cause i could just arrange a practise a rehearsal with my band a couple of times a week and only practise my bit on the guitar. So.. what should i do :?: :?: :D