My course has cost me around £6500 so far, thats for the 45 hours all exams, books and essentials and landing fees. On about 39 hours at the moment and got one more nav flight to do before we start looking at my QXC. probably going to overshoot the 45 hours as i feel im going to need quite abit of general revision!
When i first started, i wasn't sure if i was just going to do the NPPL or course or the JAR PPL. Payed in installments and when i finally decided to upgrade to the JAR PPL course, found that the price had gone up a couple of hundred pounds (mainly due to the rocketing price of fuel!) So my advice would be agree on a fixed price from the start