SilverStar headlight bulbs are a great start towards freshening your Bonnie'* looks!
They will give you a nice bright white light that is far better for visibility than the blue-tinted HID-look lights, plus there'* the fact that everybody'* DONE the blue-light thing!
Clear the amber lenses out of your corners on the front next.
I've got a '95 SSEi, and I'm going to pull the tinted pieces out of the tails soon, I'm not sure if the '96s can be done the same way but it'* worth a look.
If you have the later tails that have that piece that runs across the bottom of the decklid, you could take a stab at lighting the "PONTIAC" script there.
On the interior, several BC members have tinted their interior lights to match the red of the instrument panel.
Other than that, just try to think of original touches!
PS: If you want to see SilverStars just look at my sig!