GARMIN IN-CAR NAVIGATION   Garmin is a leader in Global Positioning System (GPS) technology and an innovator in consumer electronics. Their vast experience in consumer (recreational) and aviation GPS systems has now been brought into the realm of in-car with the StreetPilot series of GPS receivers.     Navigation Units:   Garmin GPS units are ideal for the user who needs a portable system that can be moved from vehicle to vehicle (or even motorbike!). Advanced features such as turn-by-turn voice guidance and dynamic re-routing are built-in, and a wide variety of mapping CDs give the systems a lot of flexibility.   There are currently 3 products in the navi system lineup: StreetPilot III Deluxe StreetPilot 2610     Accessories:   64Mb DataCard 128Mb DataCard USB DataCard Programmer   MapSource City Navigator CD-ROM - Australia MapSource City Navigator CD-ROM - North America