ADAM from NOW is what I take. It has a really good nutrient profile and contains some good herbs, etc. I get mine from bodybuilding.com because their prices are very reasonable. Here's a link (work/family safe): http://www.bodybuilding.com/store/now/adam.html
If that doesn't tickle your fancy, then check out Life Extension ( www.lef.org
) products. They are also usually very reliable.