I have a GPSMap 276c purchased new in July of '05, but I'd really like to upgrade to the Zumo (and I have no boat, so no use for the marine features). I have the auto kit with all cradles/chargers, three memory sticks (the stock 128MB, a 256MB, and a 512MB, for loading most of the US on for my big tours), a hardwire cable with audio for the motorcycle, and a Ram cradle for the motorcycle. Care to make an offer?
BTW, I've never had a problem loading MapSource routes onto my GPS from my PC. I've really liked this unit and am a little reluctant to get rid of it--I love the transreflective screen that gets brighter in sunlight, and the size of that great big screen, and the audio. Don't know if I'd bother with XM or any of the weather/traffic mapping on another unit. But I'd really like the ability to control my cell phone via BT, now that I have a StarCom intercom system. As it is, I can only set the phone to auto-answer, or make a call right before I take off. I have no experience with the x78 series, but my 276c has been a winner!