I am thinking of getting a GPS for my thunderbird. I am thinking with all the safety cameras starting to pop up it might be handy to have something that warns. 1st Question: Are the new safety cameras coverd in the Garmin 550 or Tomtom rider? 2nd Question Are the GPS's worth the coin ? It would be helpful for navigation occasionally - i normally have a pretty good idea where I am riding and check out it out google maps before I leave. More keen to have something that lets me know where all the cameras are poping up - can you also program places as well? Was thinking this might be useful if I wanted to plug in the Mobile camera locations from the RTA website. More just a prompt to be ware when riding in areas I am not regurlary riding in. Thoughts ?