Watch the Man On Second online guitar lesson by Brad Carlton from Chord Studies: Beginner Chords Vol. 2

In this progression make sure you utilize the second finger pivot in the first three chords. Simply put, that means we don't move that finger. Also after the Am chord make sure that the fifth string is deadened for the next three chords. You can try breaking the chord up into arpeggio based rhythms, and as long as you're in the 8th note groove you'll be in business.