Your plants look perfectly fine to me. The only reason I could find that their stretching is because they look very early in flowering...that is completly normal for the plant to stretch during the first 2-3weeks of flowering, they look great!

Try and get a few 25W CFL's to light up those bottom budsites. Leabing those in the dark and you might be wasting precious bud growth. Other than that, keep up the nice work :thumbsup: