Med, I have a handheld Garmin E-Trex for geocaching, and I have a tomtom that looks like this...

http://www.tomtom.com/products/product.php?ID=77&Language=4

It is a cool little setup, expecially as it is in a nice portable package too. One chan be has for quite a bit less if you shop around.

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.