well, as for the headlights, you could always go DIY on that... you just run the risk of destroying your headlights, but lots of guys do that on their rex's. You stick em in the oven on like 150 or something, pry it apart, and remove/paint what you want. Check around on nasioc for that....
then again, get on nasioc if you're not. Its not just an impreza site, all subarus. Might also want to check out www.teamintrinsic.com too. Its kind of a little club, but everyone on there is super nice and cool.
24mm would kick some ass!!!!!!!! The strut bar in the front won't really do much until you get stiffer springs/struts. The stock stuff takes up most of the stress before the frame itself will. I've got a strut bar in my car, but as I'm just on an RS suspension, it doesn't really do much for me either. But it does look good, and when I do stiffen up, it'll be real nice!
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Dont worry, its a controlled slide.