Be warned: the PC version does not the ability to change the view whilst you are walking. You actually need to stop and change the view manually, which is annoying (and hardcoded).
I have no idea what you are babbling about. The PC version can switch from 1st person to 3rd person with the touch of a key. And looking around is controlled by the mouse.
OP: no you cannot do a trade in that fasion. But to quote Murt from several months ago: Send it to them with a note telling them to use it for a coaster so their nice desks do not get coffee cup stains on them. Honestly that is all the PS3 version id gppd for at this point.
That may not be exact I'm going from memory here.