Very nice.
I would avoid the de-snorkle mod. That removes the very thing that let's you know a Boxster is coming down the street before you even turn to look for it.
No other car has that unique sound.
As far as mods, the guys here on the forum have a
pretty coold headlight mod that I would do in a second if I had the old school halogens like you. Gives it the Le Mans GT1 LMP look while upgrading to HID. Much better than spending all that money on factory litronics (which I would NOT buy used unless offered at deep,deep discount... ditto for anything else electrical).
A set of smoked LED tail lights would look nice too and make the car safer since LED has such higher visibility at night.