From fuel prices to tax credits, which hybrid pays you back?

Toyota Camry
Hybrid

Base Price (inc. dest): $25,860.00
Tax Credit  $0
Adjusted MSRP:  $25,860.00
Premium:  $3,775.00
MPG: 33/34 (city/hwy)
MPG Benefit: 9
Combined MPG: 34
Annual Gas Cost (15,000 miles, $4.20 per gallon):  $1,852.94
Gas Savings:  $667.06
Years to Payback: 5.7
EPA Pollution Rating: 8.0
Compared to: 2007 Toyota Camry LE 5-Spd AT
Base Price (inc. dest): $22,085.00
MPG: 21/31 (city/hwy)
Combined MPG: 25
Our Take: “All Camry, with hybrid economy. A can't miss hit if you like saving money at the pump and limiting your emissions.”

Details, Price Quotes:
Toyota Camry Hybrid