I've had the c320 for about 5 months now (purchased it for my wife, but I use it a lot) and love it! She was using it the day I plugged it in with only about 30 seconds of instructions from me (she's not too tech savy). I purchased it BECAUSE it didn't have a built-in hard drive. With the SD card, you can updated waypoints or maps without uninstalling the unit. Also, the SDCard won't die on you like a hard drive AND you get better battery life. On top of that, you actually get a copy of the City Select maps with the c320 which Garmin lets you install on one additional unit. If you get the higher end version with the hard drive, you don't get the DVD.

$274.99 with free shipping

I always thought that battery life was an odd seller point since it's always plugged into a power source, but it came in handy recently when we switched vehicles to do a little real estate shopping. I just sat in the back seat of my brother-in-law's Jeep and told them where to go.

I just wish there were more fun voices for it!