I'm sick of my family asking me to produce a map & directions off the PC everytime they go anywhere, so I've just ordered TomTom Go for £412 . Now I can say ... "just plug this in, and follow the instructions". I'm pretty sure the unit comes with everything you need to get started, e.g. memory card, mount etc.. But is there any official or third party software that I should download for speed cameras, enhanced functionality etc? If so, where would I get it from?