Hi Marsblyr,
First off, a 750 is an outstanding score (it's right around the 99th percentile overall), so you can comfortably apply to any Business Schools that interest you. Most Schools don't put too much emphasis on the AWA score - as long as you score at least a 4.0 (which you have), then you likely have nothing to worry about in this regard. You're ultimately asking Admissions questions though, so you would likely find it beneficial to speak with an Admissions Expert about your overall profile. There's a Forum full of them here:
ask-admission-consultants-124/GMAT assassins aren't born, they're made,
Rich