JRSC has gotten cheap. You can pick up a nice LS setup on eBay or forums. I'm going JRSC, have it sitting in my bedroom lol
PERSONALLY: I'd be really concerned about my toque converter, and transmission,...and don't do anything without a tune d'oh its not worth f_cking up your engine/whatever,then not being able to afford fixing it b/c all your monet just went to your shiny new turbo/super. Now you have a wonderful boosted automatic that doesn't get you to work or school ,much less be able to race on track night, lol.