First thing would be to drop about an inch, use Eibach springs or coilovers. After that, some custom wheel. Once you know how it looks with those mods, go with a body kit. What you put on it would be mostly a matter of personal taste.
For speed you can go wit intake, header and exhaust, but it's not going to give you all that much power increase. If you really want to go fast, save your money and go turbo later on.