Good brands for GPSs include GARMIN, TOMTOM, Magellan, Nike. All of these brands are good, and depending on price, are going to be good choices for travel.
Best Buy sells many GPS systems. A good, trusted brand would be Garmin. I have one of those and it works well. Or, you could choose a Tom-Tom GPS system, but I don't have any experience with that brand.
Yes, TomTom GPS is a good brand of GPS. They sell a range of products including handheld GPS systems or GPS to go in your car and be able to drive any where you please.
The most popular brands of GPS systems include Magellan and Garmin. Both offer marine GPS and are available on sites such as Amazon and in stores as well.
There are good and inexpensive GPS systems for trucks. These GPS systems for trucks include Garmin Nuvi 465t 4.3" GPS Truck Navigator and IntelliRoute TND Truck GPS.
Magellan is just the name of a company that makes brands of GPS systems. They make car, handheld, and mobile GPS navigation systems and they are used the same way as any other brand of GPS systems.
Bestbuy.com would be a good place to start looking for black gps systems. You can also try looking on amazon.com. They have good prices on gps systems.
The cost of a GPS tracking devices depends on the brand and the model of the device. The price range for GPS tracking systems is anywhere from $50 to $300.
You can find the difference between marine gps systems and garmin gps systems on the following site: http://www.secrets2business.com/the-difference-between-marine-gps-handhelds-and-their-bigger-brothers/. They have good descriptions.
You can download free software for your gps at download.com. Another good source is to go to the brand's official website. Cnet.com has downloadable software for GPS systems. However, the best place is the manufacturer (TomTom, Magellan, etc) website of your individual GPS unit.
The Garmin Forerunner 405 GPS are an accurate brand of GPS and a good watch.
Magellan is an excellent brand of GPS for the prices offered. Especially if this is your first purchase of a GPS system. It works very well for avoiding traffic.
Garmin GPS is a trusted brand in GPS navigational systems. It is so expensive because of its reputation. There are other options out there, but some research is necessary.