I would highly suggest that you go with a JDM 3rd gen 3SGTE:thumbup: Somewhere around 240-250HP stock at the crank. More or less your looking at around $2,000 for the motor, tranny, ecu, etc.
Installation will probably run you another $2,000 depending on what shop you take it to(unless you plan on doing it yourself) But you should highly research any shop and make sure they have a good reputation before you let them touch your car