Hi spiffy,
First off, a 740 is a strong score (it's right around the 97th percentile overall), so you should apply to any Business Schools that interest you. Since you've named some highly competitive Schools, you would likely find it beneficial to speak with an Admissions Expert about your overall profile and application plans. There's a Forum full of them here:
ask-admission-consultants-124/As an aside, while the Q46 won't impress anyone, it would only be a minor 'red flag' in very specific situations (re: highly competitive Finance Programs or other Specialty Programs), so you likely have nothing to worry about in that regard. If your AWA is less than a 4.0 though, then you might have an issue (an Admissions Expert would better be able to evaluate your overall profile and determine how much of an issue - if any - would exist).
GMAT assassins aren't born, they're made,
Rich