I have a video from Prevention Magazine callled "Fat to Firm" which has a twenty minute strength training program for beginners. I really like it because they show the correct for each exercise, and also show you what NOT to do. Your library may have it, or "Weight Lifting for dummies." I bought that video at Kmart for only seven dollars.
Hope that helps.
(who has yet to do more with strength training than watching the video...sigh)
"I can't change the world, but I can change the world in me. I rejoice!"-Rejoice by U2