Watch the Modal Chords online guitar lesson by TrueFire from Play Rock Guitar 8: Advanced Rhythm Approaches
Modal Chords - Breakdown is a video guitar lesson presented by Carl Verheyen and is sourced from S.W.A.T. Rhythm.
This breakdown gives you the theory behind the modal chord idea. I worked it out for all 12 keys and I use it all the time. My reason for presenting it in the key of Em is so we can hear the chords against my open low E string. But I strongly suggest you transpose it to other keys, too.