is this wrong...

TTI headers has good groundclearance,so does dougs and these fairly new on the market tri-y´s http://www.engine-swaps.com/Pages/ProductsType/SB_Headers.html

when it comes to headers you get what you pay for and paying alitle more the first time around usualy pays of in the long run:)
i would go for headers since they always makes more power everywhere in the range aslong as you dont get a set that is way to big or small its also a good step on the way since you may want to upgrade your engine further in the future.