Have you tried to see what your gains are by JUST changing diet and training alone w/o gear first?
Diet is #1, training is #2, IMO. If you want to see gains, your diet should be 40-50% protein. If you're unsure if it is or not, try out fitday.com, a free food tracking website which will show you your macronutrient breakdown at the end of the day. If you're short on protein, clean up the diet first and yes, the post above is SO correct -- READ, READ, READ, LEARN, LEARN, LEARN... and then ask a ton of questions (specific ones) to find out if it's really want you want to do.
If you feel you've already done all this, maybe a 'roid store representative can further answer your concerns. I'm just a firm believer that most people want to jump into gear immediately without doing it the old-fashioned way first. Just my $0.02
Be careful!