tom tom
i have a Tom Tom. Works great for me. It was only about $300. and it talks to me with this very polite womens voice!
First time I used one was just after Katrina. I was asked to volunteer to drive down from Miss. in a rug cleaning van to pick up flooded rugs. I had never been before and of coarse there was a million detours. NO prob. George Bell just loaded in the address's and the GPS unit did the rest. Not need for street signs at all. Loved it.
Since then I have got one of my own and just like my bberry i can't live without it.
No getting lost, confused, angry, stressed and running up my blood pressure. and of coarse I am on time even though i am constantly traveling in states and cities i have never been to before.
My advise is to get one just to lower your blood pressure. Hopefully i will live a few years longer now!