So I'm planing my build for down the road, not ready just yet. I plan to use a local speed shop for the wrenching (I can't do it anymore). The owner/Dyno-Tuner there is a KOOKS dealer so he pushes the KOOKS and sells them cheaper than any place else I've found.
I like the looks of these ARH headers
and I've read a few posts indicating they're easier to tune for with regards to O2 sensors on the Catted-H setup.