raitchison said:
You will want to wait till the F/I systems are out there, matured and proven.
Hmmm... Someone's gotta buy em first in order for them to get mature and proven, no? You can't test results of a part by simply waiting for the part to get better...
The main thing to look for in a kit is how complete it is. There will always be a learning curve, and there will always be improvements. Hopefully, the kit you choose will be upgradeable in the future as improvements are found, much like mine is in my Miata. I pay $30 for a new chip in my auxillary ECU, pull the old chip out, and swap the new one in when new software comes out. That's the kind of thing you'll want to look for.
As for the other options in the poll: there's a good chance that headers and a catback will work just fine with a supercharger anyway, so that's a moot point. Headers will obviously not work with a turbo, and you'll want to go with a turbo catback (3" or more ID) to get the best performance. Turbos act as mufflers, so you can put bigger exhausts on and still keep sounds bearable. Superchargers act as amplifiers; throwing a turbo catback on a SC car makes it LOUD.
My suggestion would be to wait to throw parts on the car, be they FI or NA. If you wait a bit, you'll see the aftermarket parts increase, and you'll have a better idea of which way you want to go with the car, given availability and prices.