Shifty
Whey 20 mins after workout...wtf, get it down literally on your last rep!! im not joking, 20 mins of muscle breakdown!? score!
The article on DB vs BB was probably just generalising the idea that you can load up a bar and push (usually) more reps of more weight out. In many schools of thought this "increased overall work" when applied correctly should lead to better gains overall. HOWEVER do not come under the illusion that the article is any way correct. The idea that DB's help definition? wtf, go define definition, about the only thing that aids 'definition' is weight loss, the uncovering of muscle you've already built! The only difference with DB's is that you can even up arms as they cannot help each other and often you put more stress on the synergistic (assisting) muscles.
Both should be mixxed in fairly equal amounts. Theres a lot more to BBing than choosing the 'best' exercises. Try lots of things, the motto ive started to use is "You'll never have a big bench press if you can't squat" - the details of which are complex but the truth, undeniable.