To the OP,
I've been researching PH's/AAS since I was 18. I'm 26. I'm still not completely comfortable with my knowledge base. Things change, new products come out, studies make conclusions, BANs happen lol etc etc. Take your time and heed the advice of those in the know.
The concept of the gains from PHs and the likes of injects are exciting, and lure newbs in. It tends to make people look over the facts. You gotta walk before you run.
Get all the other factors in check and don't take it lightly. Hell, if you have the time get a good personal training cert or nutrition cert if you're serious. You'll find out how much you really didn't know. The info is out there you just need to want to see it. If your diet is sketchy, training is sketchy, then taking hormones is extremely sketchy for your health and well being. Why waste your money and the years you have ahead of you?
The natural products floating around, from what I've been reading, are great. So slow it down killer and earn what you want.
from a personal perspective, I really want to run Hdrol or Sdrol right now, physically I'm ready, but I think I'll try a natty test booster myself since I never have.
Crush the weights, shovel the food down your throat, and sleep like a bear in winter, you'll get what you want.
-Peace