Loading Open Source Maps on Garmin 800

[kunalraiker]

What is everyone using, which are the best open source maps out there?
What size micro SD card is required.

How does one load the maps.

[am50em]

http://frank.kinlan.co.uk/garmin-edge-8 ... -edge-800/" onclick="window.open(this.href);return false;
http://www.dcrainmaker.com/2013/01/garm ... eview.html" onclick="window.open(this.href);return false;
http://garmin.openstreetmap.nl/" onclick="window.open(this.href);return false;