Which zapper please....advice from users appreciated?

I know that possibly I should have put this on the Zapper Forum , but I really wanted advice from a long term user of zappers, who is not the supplier, on which one I should go for.
I have trawled the web sites and am quite confused as to which if any is the genuine Hulder Clark web site. Also I am from the UK, so would prefer to buy from a local supplier as I do not want to have to pay $59 postage.

Wheras i would prefer to only spend $50 for the zapper, i realise this is probably a better value investment long term than the herbs and parasides because at least it is not consumable!So if i have to spend a few hundred dollar then so be it......if it works!! So please send me your warnings on which web sites to avoid and reccomendations on quality zappers that work!