I would NEVER have thought I would EVER become 'evangelical' about my power provider nor have so much fun organising my power supply! I now have access to (real) people, prompt answers to queries/emails, help and assistance on tap, courtesy, good humour and most of all - cheaper power!
I have cut my power bill by more than half in my first month, am on target to do the same for my second month and have recommended Powershop to all my friends and anyone else who will listen! I am absolutely delighted with them as a supplier so much so that I've been moved to add this comment. I cannot praise them highly enough.