If you do a cycle, don't do bodybuilding bro cycles of ridiculousness (1000mg a week first cycle.)
[youtube]http://www.youtube.com/watch?v=g9ubAQfYcWQ[/youtube]
Bill March, one of the first test subject's for Dr. Ziegler's Dianabol steroid, overhead pressed 390lbs at like 200 on just 10mg a day. But if you go look at random bodybuilding recommendations people say to take like 30 with testosterone for your first cycle. Dr. Ziegler with Dianabol recommended 5mg for lightweights, 10 for middleweight, and 15 for heavyweights. 5 was meant to be a full androgen replacement. So obviously bodybuilders have gone off the rails in how they use drugs compared to their "intended" use.
[youtube]http://www.youtube.com/watch?v=xAnWOC4Pf_Y[/youtube]
That's David Rigert there, another 1970s weightlifter. The official Russian dianabol cycle was .5mg per kilo of bodyweight, 3 weeks on, 3 weeks off.
So if you do steroids, just please don't be an idiot, only do like 250mg of testosterone or something.
Now, I don't think you should do steroids. You should probably just eat a lot and lift heavy. Basically, as Kurgan said, it's much to use steroids to turn your 350 bench into a 450 or 500 bench. Because otherwise it'll turn your 135 into a 250 or 275 bench.
Sorry for spamming videos, but here's another explaining. Dave Tate referred to steroids as your ace card, in that you can only use it once.
[youtube]http://www.youtube.com/watch?v=pBOpXBfw0sE[/youtube]
His example is, if you use steroids to make your high school football team, you're probably not gonna go to college football, if you use it in college, you probably won't go to the NFL, etc.