first let me say congrats on the purchase! the type-S is an absolutely BADASS car for the money!

the #1 priority for me would be LIMITED SLIP DIFFERENTIAL. these can run you anywhere from $300 shipped for a used itr lsd (which fits right in by the way) to $1500 for a kaaz. you can find used LSDs for sale on this board, on honda-tech, and on ebay. this will dramatically improve handling and traction in turns. also some super sticky tires, maybe nitto neo-gens or falken azenis?

other than that i would start with the basics - intake, header, exhaust. that will open it up a little more and lay the groundwork if you decide to go supercharger or turbo later on. as far as all that, i wouldn't mess with a super or turbo until the car is fully broken in - 15,000 miles or so. but i'm anal like that. the intake is the first thing i would do, just because you can hear the secondaries opening up at 5800 rpm and it sounds cool. you'll get a tiny bit more power, a bit of throttle response. good place to start. its your car, so do what you want. as for rims, 16 is the stock size, so unless you were going with wider rims, or significantly lighter rims, i wouldn't bother. you may however, consider spending some money for some REALLY sticky tires. that will make much more a difference in handling than rims will. heck, maybe lower it about an inch, maybe strut tower bars for improved handling. all these are potential suggestions - i focus mainly on performance/handling, not on looks or show, but it all depends on what you see for your car, what you like and where you want to focus your attention/energy/money. congrats again, enjoy it!!!