i would look in to importing from USA considering the exchange rate at the moment. I buy all my grooming stuff from ww.cherrybrook.com even with postage it works out cheaper than any UK supplier(usually).
The specific page for blaster is
http://www.cherrybrook.com/store/SearchResults.aspx?CategoryID=712&viewmode=normalThey are very reliable & the supplier of choice for most pro handlers, they are very well known/established so no worries regarding money etc