There are several Global Positioning System (GPS) receivers on the market today, ranging from just over $130 to several thousands of dollars. GPS's use military satellite transmissions to help you determine exactly where you are at any given point in time, and come in a wide variety of sizes and offer a large range of functions.
1. TravRoute's CoPilot
Complete GPS mapping system for use with a laptop. Comes with everything you need (nothing extra to buy) to turn your laptop into a great traveling assistant. Versions available for laptop and palm-held computer systems.
2. Garmin eTrex Hand Held GPS
You'll be hard pressed to find a less expensive GPS receiver. So small, it fits into the palm of one hand.
3. Magellan GPS 315
Great price, light weight, and easy to use. Weather proof and only 7 ounces.
4. Garmin eMap Hand Held GPS
Internal basemap containing information on North and South America including, lakes, rivers, streams, airports, cities, towns, coastlines, and U.S., state, and interstate highways.5. Garmin 126 GPS Track Plotter
Good basic GPS receiver at an attractive price. Lots of user functions.6. DeLorme Earthmate GPS Receiver
One of the very few GPS receivers and mapping software systems designed to use with a Macintosh Laptop.7. Garmin StreetPilot ColorMap
Features a full color map. Auto dash mount and cigarette lighter adapter included.8. Magellan GPS Companion
Designed for use with Palm V and Vx hand-held computers.9. Magellan MAP 330 Personal Navigation Sys
12-channel GPS receiver with built-in base map with world borders, U.S. cities, highways, parks, and airports.10. Garmin GPSMAP 76S GPS
Basemap of North and South America, including major highways, thoroughfares, rivers, lakes, and borders. Rugged design and large screen.