I know your dilemma. Got money to spend but don't know where to spend it. I am thinking of paint job and new top.
But I could always throw a t56 in........
Your wish list for the computer is my exact setup right now. It screams and I love it. I leave it running 24/7 d/ling movies/tv shows all the time, then, with 25% cpu usage, I start playing Doom 3 or half life, and without a glitch, it runs fine!
When XP 64 is stable, I will be ready for it.
Parts parts parts, which to get. All I can say is if you go for "go mods", get a o/r midpipe, gears and a used intake manifold.
Comfort, replace shocks/struts, springs (lowering at the same time is a good idea), etc etc..
Show, get some "Type-YAARRRRR" stickers & dubs for tha blingidy blingin'.....
All up to you. A loud exhaust and a fast car sort of balances out the rough ride and other loud noises.
Did you figure out your elec. problem? What was it?
Scott