I'm looking to buy an aviation handheld - anything from the Lowrance 500 to the Garmin 196. The Lowrance Airmap 1000 looks like a reasonable mid-point between the smaller, cheaper handhelds and the all-powerful 196. Has anyone used the 1000 at all? I don't know much about Lowrance's avionics reputation, though I know that they've been in the marine instrument business for a long time. I've checked all of the old posts regarding handhelds and few folks had much to say about Lowrance. All advice appreciated!