You don't. If you want to get that big, you're going to have to gain some fat along the way, and it's going to take a few years. The good news is that it will only take a few months to shed the fat.
I have no idea WTF you're talking about.
I could list half a million links backing up what I said, but it didn't come from just one source and you'd have to read for a few months to get through it all. In my experience through doing different programs and seeing what others have done, it works if you're trying to get bigger and stronger.
I'll give you an example from my log:
warmup - 135x5, 135x5, 165x5
work sets - 195x5, 215x5, 235x5
Hi Incline DB Press
70x5, 80x5, 90x4 <-- when I get to five, I increase the weight
Lo Incline Barbell Press
170x5, 190x5, 210x3 <-- again, when I hit five reps, the weight goes up
For triceps, biceps and shoulders, I do sets of eight instead of five. Same basic principal, though.
The reason 3x12 doesn't work so well is that you're lifting such a small percentage of your 1RM. Typically 12 reps = 70%. That's not enough of a load to convince your body to get stronger.
Asking the same questions that have been answered a million times without reading and looking for the answers on your own first. Getting it just wrong enough on so many ideas that it takes a long time to explain and nobody even knows where to start. Contradicting your own ideas and goals....
I've found that the best way to deal with trolls is to either ignore them (if they're obviously trying to be inflammatory) or answer the question seriously (that way anybody else who reads it will have the answer). Takes the fun out of trolling if you can't get anybody's goat. I don't think you're a troll, though. You've just been reading too many damn magazines.
The excitement of lifting should come from RESULTS, not from the program. I love looking back in my log and seeing the difference in weight from then and now. Every time I hit a PR, I celebrate a little on the inside (ok, usually on the inside), whether it's one pound or 25.
Use the rep scheme I posted without changing much else about your program (need more leg work, and don't do squats in the smith machine until you really know what you're doing). I guarantee you'll see your lift #'s improving quickly. Well, as long as you're willing to eat enough to support growth.