I bought a kit from Steve's Camaros and the Tie Rods come unfinished. I went out and bought some Semi-gloss black but I keep thinking it'll look odd to paint those.

What should they be?

Natural. I painted mine cast grey to similate the natural cast color. They definately were not black.

I used a product called "Metal-Mask" from POR-15.

http://www.por15.com/PRODUCTS/PRIMERPAINTSCOATINGS/TOPCOATS/METALMASK/tabid/125/Default.aspx