Propilot108, I live and work in Europe and have a little knowledge on this subject.
There are two ways to qualify:
1. Remain outside the U.S. for 330 days in any one year period (not tax year, not fiscal year, just a year)
2. Or, establish residency outside the U.S.
The IRS publication mentioned above pretty much explains all of this. Even if you make more than $80K, only the amount in excess is taxable, but standard deductions or itemized deductions should eliminate any tax burden.