Brakes !!
First job is brakes !!
Im with noel on this one !! Better braking enables you out brake people therefore giving you the edge on the twistys.
Also do you really want to spend all that money on everything else and the stack your pride and joy into something !! Coz you decided to do the brakes last !! Trust me Ive been there !! It aint pretty !!
Followed by 17s and a tough of lowering.
Then a R5 turbo transplant !!
That should keep you busy for now.
Oh and welcome to the site !! Enjoy !!