Yeah Mate, Just having a laugh with whitebeam, but to get back on topic.....
In relation to the OP's question I stand by my first reply of preferbaly giving a good price but saying you cant do the Job for 3 months cos your booked up, that way you get an indication and practice on pricing techniques, and also make the customer think your really busy.....
And of course, when you say you cant do it for three months, add on but i can find another great tiler who can, ill pass them your details, then post the job up here.