In this order:
Get Ashen Gray Metallic
When you get the deal you want tell the dealership you'll sign the papers today if they get the windows tinted as dark as legally possible on the sides and 15% on the back.
Put $350 back for the Vararam intake when it comes out
Add foglights if you don't have them ($150 roughly)
Change the interior bulbs to LED's in whatever color you choose (I got blue and they are great) ($15)
Get yourself a decent exhaust set-up but I'd do some heavy searching for the sound you like as there are many options and opinions ($350-$1500)
I'd say look at what others are doing on here but by all means do what makes you happy and take what people say lightly.