I currently use the TomTom Go 730T, which I've been happy with. I want to be able to enter not only addresses, but also map coordinates. And do not want the simplified, dumbed-down screens, but the full screen options. Currently I use an SD card. The only reason I'm considering a new TT is to get one with free map updates, so I don't have to keep paying for maps every year. And I want free traffic. Suggestions?