Hi Gubby and all,

I've been using DADGBE and teaching it for many years now. Here's a piece from my teaching notes, "Why DADGBE? Its first virtue is extended bass capability: a full octave of bass notes is easily reachable on the 2 lowest strings. Secondly, it allows for a large number of strings to be easily used as drones or pedal tones. Thirdly, it facilitates playing of complex tunes while keeping both bass and accompaniment going. Forth, because only ony one string is changed from standard tuning, players learn it quickly. Even the dreaded F chord is easier and doesn't need a full barre."

This has all been said in the other good answers you've gotten. If you're interested in DADGBE chord charts, let me know and I'll send them snail mail to you and anyone else who's interested.