Hi Manga, Although Wales is a wealth of information, and she is also very helpful to newbie shoppers, you should realize that your question is the same as, "Wales, how do I best become competition to you, for shops in your own area?". People generally aren't too eager to give away their best companies or shops, as they have worked hard to gain this information. There is a list at the bottom of the page with hundreds of companies to sign up with. Research comments on the forum, then decide if they seem right for you!