I bought two C580s recently from Fry's Electronics for $180 each and thought I got a smokin' deal...

Then--I see Amazon currently has them for $149 

http://www.amazon.com/Garmin-3-5-Inch-Portable-Navigator-Direct/dp/B000MF7L50

I'd invite anyone looking for a GPS to check these out. Here's a couple YouTube links which describe the C580 feature set:

http://www.youtube.com/watch?v=E-v58z-NEY4

http://www.youtube.com/watch?v=GaBK7FFOp7E

Originally-- Garmin charged a LOT more for the C580 ($900)-- but with the newer generation (thinner and larger) displays hitting the market it appears they are looking to unload their "old" flagship for MUCH less than they currently charge for screens barely a half inch larger.

I bought the first one for a gift, but after loading it with the 2009 maps, using the bluetooth,SD card MP3 options and checking out the MSN -- current weather,gas prices and movie times-- I decided I needed one of my own.

So far, four of my friends bought C580s after checking mine out in person.

I installed it in the Caddy -- sticking the mount to the windshield right over the left side vent. And frankly,  larger screen wouldn't fit.

Like any electronics-- I'd expect somewhere down the road, this GPS will be as uncool as a shoe-sized cellphone-- but for NOW-- (and at the price) it definitely IS a great deal....

Works really well