I really had my heart set on a Legend Lime one...
I really had my heart set on a Legend Lime one, but I ended up with mine in Torch Red, which is good, too! There's a sweet Lime one around here with the dual skunk stripes (painted, not vinyl!) that looks really nice.
I have the stock matte 17" Bullit wheels, which don't look too bad. I'm not a fan of the big shiny rims, myself, but to each their own!
The one thing I do regret is not getting whatever option had the trip computer and the additional electronics (mpg, etc). I don't know if it was in with the $450 "My Color" upgrade, or something like that. The "My Color" doesn't do anything for me, but I sure would like to have something on those 3 blank buttons by the dash power outlet!
As far as the Shaker 1000, unless you're really a hardocre stereophile, I'd stick with the 500. It has enough bass for me, and after getting Ford to replace the head unit for the CD skips, it hasn't given me any problems and sounds pretty good. You'll probably save a pound or two of weight, too.
2005 Mustang GT in Torch Red
C&L Cold Air Intake/Diablosport Predator Tune
Tokico D-Spec Shocks & Struts
Steeda Sport Springs/Front and Rear Swaybar/Front Swaybar Brace/LCAs/Adjustable Panhard Bar and Brace
Steeda-branded Borla Stingers
Steeda Underdrive Pullies
1965 "GT" Logo and some other chrome bits