If you haven't already, factor in batteries & charger (4 + 2/4bay charger around £30 from Fogstar with discount code). As to the brand's I've mentioned the choice is good. All are pretty reliable, easy to use & can do the job. There's a recommended hardware vendor thread in new user section. Try Ecigone, Vaping101 or Greyhaze to start with. I've used them all with no issues, although Greyhaze have had their moments as other apes can attest to. You should be able to find a mod between £30-45 that you'll be happy with.