what are the best upgrades to start...

I'm wondering since I'm going to be selling my concorde (lol) and getting a car this summer for sure. There is already a thread going on about which car to get, if you want to help out...post here, http://www.hondastyle.com/forums/sho...3472#post23472

Anyways, since I'm probably not going to go over my budget as I was hoping to at one point, I might have some money left after the car is bought. Maybe ~1k can.

What kind of upgrades should I do. I want to do those rear brake lights (not sure what they are called, think it's altezzas, correct me if I'm wrong). But the rest I want to put into small engine parts...what do you people recommend?