So I plopped down $400 or so for Garmin's Nuvi 350 from Amazon.com for my dad's Christmas gift a while back. At that time, it was one of the better rated models and was a steal considering other big box retailers were selling it for $500+. Since then, the price has come down as the model will probably be discontinued for its bigger and "better" successor the 660.
Some quick notes. The actual device itself is very lightweight and pretty easy to use. I thought the screen would be a little too small and clumsy, but it actually works quite fine. Switching between maps is sometimes a pain and I haven't quite gotten it figured out yet. The device works well, using mostly main roads (so side street detours can prove troublesome), but unfortunately it doesn't have any construction information about detours, etc. So if you are off the suggested route, you'll hear endless directions to try and put you on something where you can't go.
So far, so good, however. Further review after continued use.