just got a gps and love it
I am going on vacation in August.
I bought a GPS tomtom one xl from u2buy4less.com
It's the best buy I've found.
There are other places I searched that claimed to be lower, but most will scam you and tell you they are back ordered and try to sell you something more expensive.
Another good site I've bought from is elex4less.com
The tomtom one xl I like because you literally take it out of the box, plug into lighter and just type in your address. It talks to you and the street names are highly visible. Thumbs UP for the tomtom!