Jimbo wrote on Nov 11^th, 2011 at 7:59pm:

I have a fairly significant low back issue.  I recommend looking at applicable yoga postures for building core strength.  Blend them into your overall workout routine at least 3X/week. Jimbo   8-)

Some but not all ( Orthopedic issues aside) lower back issues stem from a weak Core and believe it or not tight hamstrings. A yoga/stretching program that addresses this problem might help with some of your problems or at least helps alleviate some of the reoccurring pain.

If after proper warm-up you can't touch your toes or better yet put your palms on the ground, you have tight hamstrings, not just a sore/tight lower back.
Getting and keeping your hamstrings loose may or may not eliminate all your problems, but it won't hurt either and just might do you a world of good.

Another thing to remember is that as we age we don't recover as fast as we once did. Doing back to back hard workouts working the same muscles is a recipe for disaster.
Mix up your workouts and throw in some flexibility sessions as well. A OFF day is a good idea as well. If you want to keep old age at bay as long as possible you need to work smarter not necessarily harder ;)