a lot of people, myself included, opted for the b&m clone thats on ebay for about 50 bux, its the same exact thing, and gives great results.
i didnt want to spend 3 times as much fomr the same exact part, you just have to take the handle and flip it around and you have a b&m.
but either way, a short shifter should be the 1st mod done to every manual boxster, once you go with it you will kick yourself for not getting it before