First of all, great idea on this thread Slo!
I'm a newbie myself (bought my G1 last fall) I've found lots of great info on this site. One tidbit I came across (Sorry, no link as I don't remember where
) Has to do with what I'm guessing would be a common upgrade, adding lights.
The frame on the G1 is NOT grounded. If you wish to add lights or other electrical accessories you will have to run a ground lead as well as a positive lead back to the battery. Many of the new light assemblies for tailights, marker lights, etc for auto/trailer applications don't even have a ground wire. They rely on a screw into metal to ground. You can still use these, just mount with a machine screw and attach a ground lead to the back side with a nut and washer. I'll try and get some pics of my tailight install up this weekend.