I found this book extremely useful. This is the nitty gritty of what you need to know regarding pricing policy and how to handle your customers if you're planning to go freelance. Quite complicated in places, but tons of really useful advice & various formats for forms/paperwork etc. I definately feel more confident & well informed about my pricing policy after reading this. Also some good hints for handling tricky situations with clients & how to build/maintain good client relationships. Although written for a US audience, the advice & formulas are jsut as relevant for the UK (or any other country's) market.