iPhone Price: $399 or $499
Activation Fee: $18, call at&t customer support after you activate and they can waive the fee.
$119 + Applicable State Tax.
That's a basic breakdown. Why don't you call AT&T or go in to a store. They'll tell you every fee with tax included. When I got mine, they told me the difference I'd be paying a month. That's the most beneficial.