I'll start with rims. I love the Racing Hart C5's. I'll get a set of 17's for my ride some day. They also Have 18's in the same rim.
Here's a page with all of Racing Harts rims with tire packages. The C5 is down kinda far. The C2, C3, and S15's are all great looking wheels. A set of 18's will cost you around $1200 with tires. Here's some pics of each of the rims I mentioned.
<center>
C5
C2
C3
S15
</center>
Also, after you get some dope rims you should lower the ride to make it look better and handle even better too. Just don't go too low cause I think it looks like crap.
Adustable coil overs are the way to go. You can pick up a set for $150 or so. These will allow you to choose just how much you want to drop the car. Most sets can be adjusted from 0" to 3" drop. Honestly, I doubt you'd want to go more than 1.75"s.
Performance for imports costs a ton of cash. Since you aren't dumb and won't rice your ride all you really need is to upgrade the
air intake and
exhaust A new exhaust sytem will cost you because you have a V6 with dual exhaust already. These are all pretty simple upgrades too. If you start adding performance shit to the engine it get's really fucking expensive and not really woth it unless you wanna race the car.
Not sure what kind of rear light you're looking for, but I found
these I like the smoked rear lights that I've seen better than this.