Honestly, even with 10 years of SERIOUS training under your belt, you won't get HUGE! Our bodies were not designed to carry enormous amounts of muslce, instead we're programmed to carry bodyfat for times of famine. Blame our ancestors for that one. I was a competitive powerlifter for 3 years, then converted over to bodybuilding due to injury after injury, and two surgeries. So with 15 years of SERIOUS training, I stand at 5'10" 185-195lbs at 7-9% BF depending on time of year. I'm lean and muscular and I have all my abs popping, but I'm nowhere near the size I WANT to be. Ideally, I'd like to stay at the same BF and walk around at 210-215lbs but I've realized that without the use of anabolics, I will probably never be that weight. I'm sure I've tapped my bodies natural genetic potential and my only resort to gaining some serious size, will be to go on the juice. I've been contemplating this for months now, but I've yet to take the leap.
For the most part, most supps are a waste of money. If your diet and training aren't on point, supps won't help you much. They're just that, a supplement to your regular diet. I do, however, endorse the use of a good protein, multi, and creatine. Otherwise you're just better off going on something. I'm debating on running a 12 week test-e cycle with a 6 week dbol kicker and finishing off with a 3-4 week winny run. I'm hoping it would get me to the 210 mark without any fat gains.