The best steroid IMO is the one that works best for you.
I might get flamed for saying this since I have never cycled before but I am starting very soon!
I recommend checking this board everyday and learning and asking questions.
That is what I have done and I have gained much knowledge.
The members here are great! They will answer your questions.
Take advantage of the wisdom that is avaliable to you.
IMO, using gear is a big gamble.
but like gambling, knowing the players and your limits and the rules of the game will decide if you walk away rich or walk away a poor.
Do a search on first cycle info
I am sure StonecoldNTO will be giving you the standard newbie cycle
That is what I am going to do.
I am sure he is getting cramps in his fingers from typing this