The 2007 Dodge Ram 1500 SLT Mega Cab 4x2 comes with a 5.7 liter V8 with an output of 345hp.  The 5 speed automatic transmission controls this engine, while the standard anti-lock brake system keeps everyone safe from the power of the engine.  Unfortunately, there aren't any fuel estimates yet for this monster, but following the trend of the truck, economy is anywhere from 12-21 mpg, depending on the driver.
Air conditioning, a CD player, power windows and power locks all come standard in the SLT Mega Cab 4x2.  An optional sunroof, adjustable foot pedals and power seats can be added, if those sorts of things tickle your fancy.  And with four doors and seating for 6, the 2007 Dodge Ram 1500 SLT Mega Cab 4x2 can hold all of your necessary passengers and cargo (which can be 8750lbs in tow or 2430lbs in the bed).