thats kinda similar to my setup, i have the AEM CAI and DC SS header. . . I have a 5zigen exhaust instead of the Greddy though.

I have a set of 17s on my ride, get a drop for it if you can, and MAKE SURE YOU GET CAMBER NO MATTER WHAT YOUR DROP IS. Lots of people will say you dont need camber for less than 2 inches or whatever. A drop will change your suspension geometry no matter how little it is.

As for the throttle body upgrade, you can get yours bored and have a bigger butterfly put in it. I am in the process of doing this mod along with a ported intake manifold, AEM fuel rail, and fuel pressure regulator.

Seems like you've got a good start on some solid ideas, just be careful about what you buy and you will be set.