Swiftdeath: I don't think I have any Dante's Inferno stuff. I might have had a belt buckle if memory serves me right, but I gave that to a friend for his birthday.
Night of Truth: No Halo Reach Briefcase. But I do have some really nice Halo items. I've two framed laser cells (numbered to 500 each), a metal case for Halo 2 signed by key team members and a Halo 2 poster signed by most of the team. I'll put all of that online if you're interested
I also have an Xbox 360 promotional briefcase (the same type as the Halo Reach one you are referring to).