Have you considered a single turbo setup from TDC? I had a supercharger(V2 S-trim with 12 psi and intercooled) and it was cool, but I needed something more. I guess I was bored with running even and behind everyone else with S/C'ers.
http://www.turbodrivenconcepts.com/featuregallery.html
http://www.turbodrivenconcepts.com/2001catalog.pdf
One will show you pictures of the kit and the other will tell you exactly what is included. If you are set on getting a blower, I would get a Procharger. It's a great value for intercooled boost.
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99 Silver GT Auto
Vortech V2 S-trim(Intercooled)
+ Many other mods
Dyno 7/15/00 - 358 rwhp/386 rwtq
First Pass 10/15/00 - 12.75 @ 112 mph on ZRs