I do not give my bank details myself Bless but if I am in a business I will try to open facilities for payment. Most people dont use cheque this days. Postal order - you need to go to the post office and pay charge.
Common ways to pay is by debit/credit card or for a private sale you can open a paypal account.
As you are selling your book on the internet I think you missed out the idea of how getting paid online as well.
If you have posted this thread before you read my email , fair enough but Ive not seen this thread before Oct 13 2009 this was the date we exchange emails, before we exchange emails i dropped you a line on your thread LIFE IN THE UK MADE EASY and you replied and that was Oct 13. granting on the same day you deleted my email you could have sent me a message on the same thread without mentioning your book if that was your worry.