Incidentally, while I'm waiting for the rest of the stuff I thought I'd start checking out what I've got so far.
With the graphics card I got a strange metal dooblie thingy.
I've never even changed a PCI card before but it's obviously a backplate. But why?
The graphics card itself has a backplate (otherwise you wouldn't be able to plug your monitor into it

) and what's this little padded corner bit at the top? What's it supposed to pad against?
The manual doesn't say, of course
Any ideas?