everyone else who posted hit the main points, i have the jdm swap in my lude from a basic s to a jdm h22a, no problems in the swap what so ever, if ur into the performance get the 6puck act clutch and motor mount inserts it will be cheaper to install all at once.
also the cheapest place i found the complet swap for was $1800 from soko motors (
www.soko.com)
you should definatly be able to get a h22a jdm for less then $2000.
oh yeah definatly get the helm manual from helminc.com (i think) it will give u step by step procedures to install ur engines and the directions are perfict not the cheap knock off book from the local automotive shop.
good luck!
oh yeah the h22a does pass smog! i dotn care what anyone says i got mine to pass with smog 2 regulations in california.