I've already done a bunch of stuff to my car. I thought of going with those headlights that you just showed me but I think I will just stick with my 'mk4 looks' right now. I also have H&R coilovers, front and rear stress bars, smoked turn signals and sidemarkers and FK tailights.
As for performance, I have a magnaflow exhaust, DSR 256 cams and
this 
. My intake manifold is in the process of getting polished so it should be "blinged out" pretty soon. I'm a regular on
www.vwvortex.com and go by the same name.
I plan on mounting my screen in the cup holder area and my case either under the passenger seat or in a euro upper glove box if I can find one cheap.