Vince, I would totally agree with the guys above who suggest that you don't take it, because of your age. DHEA is not like those anabolic steroids you hear about, the ones that bloat your muscles. The use of it as a supplement is more related to guys in their mid- to late 40's and older, whose blood work shows a decline in it. Here is a quote from a doctor I listen to on the radio here in NJ (he broadcasts from NYC):
QUOTE AUTHOR GOES HERE DHEA: The DHEA blood test is important for patients suffering from fatigue, autoimmune conditions, depression, chronic stress, and as a measure of biological aging. Patients who take or have taken steroid medications, or those with adrenal "burnout", are prime candidates for DHEA deficiency. Replacement of DHEA with oral supplements has been shown to improve mood and energy and to ameliorate autoimmune diseases like lupus.http://www.drhoffman.com/page.cfm/33
If you have any of these symptoms, you should talk to your doctor about it, and then ask if DHEA is appropriate to try.
As for being a lean muscle builder: Hoffman notes that DHEA can improve muscle mass and tone, but again, only if your blood work shows a deficiency in DHEA.
The point of supplementing with DHEA is to bring your blood levels up to normal, not to overload yourself with it. Too much of it does bring negative side effects: eg, it can make a guy more susceptible to prostate cancer, especially if there is a history of this cancer in the family line.
A good diet, a proper amount of sleep (which increases your HGH naturally), and a balanced workout are all you need. Checking out RJ for diet and exercise plans is a great place to start.