haha u can get a auto trannys.. VTEC does add HP over the powerband...for LS/VTEC u have to get a ECU,wireing, and u have to have the head milled to fit the LS block...sounds hard buts its not...as for the b20 havent heard of a big aftermarket for that motor yet..(its still pretty new)
b16/b18s have the biggest aftermarket... and yes b16a2 is everthing(motor,tranny,ecu, wires,axles.... ill find out what all comes with it for sure)