This is a topic I have been dealing with for a while now. With my memory problems and complete lack of direction or should I say uncanny ability to go completely opposite of the way I should be going, I rely on my car navigation tremendously.
I have had a Nuvi for two years now and with the help of Lexmano I use it to go paperless. It is amazing how a device that cost only $100 is able to hold all the caches in New England and beyond paperless. I really like the way it operates the maps and the accuracy. The down side is it is expensive to upgrade the maps and way harder than it needs to be.
I also had Tom Tom. It was a good unit. The big plus is that the maps update free and every time you plug it into the computer. I just like the Nuvi better.
Now as far as GSAK goes, that is something that you should get even without the Car navigation system. It is a wonderful, versatile, easy to use program. I use it more and more every day. I can give you help with setting it up and working it.
So final question just to clarify, would there be any advantage or disadvantage to getting a TomTom or a Garmin when I use a Garmin handheld already? Or does one have nothing to do with the other?
Can't wait to see you - ooh, lahhh laahhh I wished I knew the laps already.
We have a Nuvi 1300 and I was able to find out how do use it for paperless caching in an evening. There are pages out there about the macros you can use on GSAK for this. Now the only pages I print out are puzzle ones that I need to write notes on. We have a database that has all of the caches we have not done within about 20 miles. Just keep in mind that if you keep your alerts on, you will get an annoying BING! everytime you go by a cache. However, you do have the option of turning alerts off or setting the distance. OR you can say "I am going to keep getting these BINGS until I get some of these caches." Now trust me, that is motivation. :)
I have a Nuvi 1300 for simple day to day navigation and for FTF runs..... however for the best road navigation, gotta go the laptop route. I have a RAM LapTop mount in the Jeep with my Netbook hooked up to a power converter for juice, and running a Delorme LT-40 on the dashboard through Delorme Street Atlas 2010 Plus, and Delorme TOPO 8.0, and GSAK running as well. I keep a GZ file of every cache in Maine in the mapping programs and get a nice wide view of the surrounding area as I drive so I can gauge where to head for the caches....
Barry has a similar, but better set up in his rig as I am sure you know. He runs Garmin software on his touch screen tablet PC which is quite impressive in person....