I picked up my Magellan 315 for $75 on eBay. It came with land data (roads, cities, rivers, etc.). I erased all of that and completely cleared the database. I then went on the Magellan GPS Aviation Database web site and downloaded the current FAA aviation database to my PC using Datasend which I bought on eBay for $15. With Datasend and the downloaded database you can upload by the region you choose or the entire database to your Magellan GPS. You can also pick and choose what info you want on the GPS. I have public and private airports loaded on mine as well as VOR stations. Now, if you go on eBay Aviation Parts and buy a Sectionals DVD for $10 you can save the files on your lap top and have all the current sectionals for the US. This program works like "Microsoft Streets and Trips". Once you have done this you can put your lap top in the plane and connect your gps to it and you will have a moving map display which shows sectionals just like the ones you buy. You can plot trips, overlay sectionals, check distances, etc, etc, etc... with this program. I use it when flying cross country and found it to be a totally awesome set up. The great part is you have your GPS doing it's display and also the sectional moving map display on your big lap top screen. And the really best part is that I have a GPS and 12" moving map color display all for $100.

Note that this is an actual in flight photo. Located in the center of the screen is a black triangle which represents the airplane. The GPS is mounted on the instrument panel and you see a King KX-99 handheld laying next to the laptop which I use as a secondary radio.