How big is the dealer with placed your deposit with mate?
The reason we all get so worried when people say they have placed their deposit is that basically they haven't as it doesn't put you onto any list recognised by Ford. The reason being is that your agreeement is with the dealer (a franchised company) and not Ford Motor Company. From your point of view you should be at the top of the dealers list of the cars that may get allocated to them, but even that may not be the case.
Other problems may arise if they go bust in the meantime or Ford don't supply them with any cars (if they were to bring back the RS dealer for example).
Like I've said on other threads on this topic, I'm not trying to scare you or anyone else, I just want to be sure that people know exactly where they stand.
Of course, all this said - if you have a good dealer they might well be banging on Fords door demanding the car for you, and you could be sat in one of the first ST's!