BOSSCAT,
I have to agree with all of the above plus points directed to Heli-air. And no I don't work for them or have an interest in the company either, but I do have a long history of dealings with both the Wellesbourne and Denham offices. You will be hard pushed to find two higher qualified instructors than Mike or Quentin Smith, and when you consider that they are the level all their employed instructors are aspiring to, you know you're getting quality whoever you end up with.
Yes, there are bigger training organisations about, but remember it not the size its the Quality that counts!!
I work for a Single Engine AOC Operator and we contract 15 Freelance commercial pilots throughout the year. Currently about 50% of our guys learnt to fly with and have gone on to be Instructors with Heli-air, 25% in the Forces and 25% abroad.
Don't hang around thinking about it. If you've got the budget get on the ladder!!