I personally think an EC135 rating isn't much use unless you are ex-mil, who are a shoe-in for most EMS/Police jobs. An AS355 rating is more useful for onshore charter, but with <150 hours, as I said, neither is much use.

But if you can afford to drop £50,000, then I think either Bond or Bristow are good bets. Heli services is also good, but their FNPT is pretty hard to get used to and bears no relation to the AS355 in which you will fly.