Personally, I'd do the hooker headers, the x from slp, and a catback from magnaflow. All in all, if you go with full exhaust, you sure will be noticed, no matter how much you like the sound or not.
hooker headers have a matching xpipe so that is the way to go. the advantage of the hookers is that the tranny can be removed without looking like you are a monkey ****ing a football.
So do Flowtech's which are made by Hooker. Just a bit thinner on the steel. Havent seen too many people with issues. I had BBK LT's and I had to take one of them off in order to change the clutch(damn T-45's)