Tuning Down and Power Chords

This is a 5.98 minute video response from Steve Eulberg on Dec 30th, 2008

Question:

"nrm3304 asked "I'm trying to tune my guitar one half step down, but I am having trouble doing it by ear. I was wondering if you had any suggestions? Also, I see a lot of guitar players playing power chords with 3 fingers. I learned to play both 2 note and 3 note power chords with just 2 fingers. Should I play them with 3 fingers? Thanks." "