Here are some more pictures of my Firebird and some info on what I've added to it.
The name of the design is "Shockwave". As soon as I can remember the name of the company that makes it, I'll post the link. I've had a better sound system and a security system installed. For better sound I've added a Precision Power amplifier that sends 50 watts per channel to a pair of MBQuart speakers up front. For bass I've added a 10" JL Audio subwoofer, it gets 100 watts from the amp. It's in a custom fit box that was designed for Firebirds and Camaros. The main unit I've left stock for now - I'm saving up for a MP3 capable cd player.
I've also added a silver dash mat. It looks white in this picture though. I also have a radar detector, but I only use it for long trips. Recently I added a hands-free setup for my cell phone. Two reasons for that: I don't want to wreck my nice new car because I'm talking on the phone, and my boss called me and I couldn't hear the phone ring over the stereo!
In the near future I'd like to add a K&N intake system and cat back exhaust. Maybe after I move back to Seattle I can get a ground effects kit for it, but those are a bit pricey. As you can see in this last pic, I've had the rear window tint darkened, the factory tint was hardly noticeable. I guess I could've afforded a Formula or Trans Am version if I really wanted to. The way gas prices have been though I would have cringed every time I had to fill it with Premium! I think I'll take a picture of the engine compartment and post that also. The car looks almost as cool on the inside.