Does anyone have a Global Map 3500C. Cabelas and BPS has them for $499. I don't need a combo unit, just the GPS as i have 2 sonar units. Was hoping someone has this model to get their opinion on it. I like the big 5"X5" screen, might even be able to see it without the specks on. Thought about a hand held unit, but i'm affraid them little screens would do me in. Ease of use is what i'm looking for...izzy