Welcome to the site.
as far as exhaust...it's really personal opinion. Try to hear as many systems in person (on Camaros) as you can. Most of the clips on youtube don't sound all that accurate, especially at startup. There's Solo, Borla, Magnaflow, Flowmaster, Spintech, Corsa, MBRP, SLP and a few others. Since you're going with a SC, you'll probably want headers as well. American Racing and Kooks seem to be the best choice.
As far as superchargers go...everyone that's bought one seems to love it, so I'm not sure you can go wrong with any of them. Do your own research to see what works best for you and your budget. My tuner came back from SEMA raving about the edlebrock SC...so for my car, I'd check that out.
I have Pfadt springs and sway bars...love the way it looks and handles.
http://www.camaro5.com/forums/showthread.php?t=51670
and last but not least shifters...also check out MGW & Barton, haven't heard any negative opinions on them.