For me, it's like: Prayer/Meditation+ Exercise/Stretching+ Self love/self honoring= Yoga
If you can do a class, I'd recommend it over dvd. Just to start anyway. I tried dvd once and it didn't do it for me. But a hands-on teacher, being among a group, the ambience, etc.? Click!
Peace,
Gardener
"My soul, be satisfied with flowers, With fruit, with weeds even; but gather them In the one garden you may call your own." Cyrano deBergerac