For those who answered my question with Drew Brees, he was chosen 11 years ago and he was chosen as the 32nd pick and was the 2nd QB chosen that year.
As for Andy Dalton, he sure looks promising, but he has a few tests to pass before we see if he is the real deal. Anyway, even if he does pass the test, he would be one of the very few exceptions. And remember, we heard that the 49ers preferred him to Kap, but he got chosen before we selected.
Again, it comes down to this: Kap may become a great one, but don't count on it. If history teaches us any thing, it would be very rare for someone drafted as low as he was to become one of the elites.
As for Josh Johnson, he may be another Troy Smith - a top performing college QB who could not seem to be become the starter for another team. When we got Troy he, like JTO, played lights out for a few games until opposing defenses figured out what his weakness was. Then we found out why he was a backup. I think ARIZ may find this out with Kolb and SEA may become equally disappointed with Flynn.
As others have said, the really special QBs are truly rare.