You really don't need any special tools. You just don't want the belt to be too tight or too loose after you replace it. Once you honk the tensioner bolt down, the tensioner won't move anymore, so I'd say... no special tools needed. All the tesnioner tool does is set the initial tension on the pulley before you torque the tensioner bolt down.

twinring is right. You won't get the crank pulley off without an impact wrench. The motor will spin even if you get enough leverage. Other than that, hand tools will suffice. You'll need a floor jack to support the engine with once you take the timing-side motor mount loose... anyone else?