keep costs down (they can significantly skyrocket...trust me!)...the crx is pretty light so wheel slippage isn't a big problem and the b16a isn't a very torquey engine...enjoy the fruits of the swap with the s1/j1 trannies (they are geared a little better for acceleration than the ys1 stock lsd trannies)

if you plan on often racing it (track time) once done then the lsd is a good consideration

you can enjoy the car and save up for one later (either by buying a whole new tranny or getting a quaife unit)