[Geezer]

...Here's what I'm looking to add(so far)...overhead console,foglights,interior illumination,rear spoiler,rear sway bar,lowering springs,illuminated door sills, and a better stereo and alarm(the last two I won't be getting from Scion!).
Thanks for the input guys!

I've installed the overhead console, foglights and rear sway bar. All three were relatively easy DIY projects and are covered in detail in other NSXB threads. The rear lowering springs should also be pretty easy (do them when you put on the rear sway bar), but the fronts are a little more involved.