I found a copy of Days of Thunder the other day, abandoned beneath piles of casettes (it had the casette box).
Also, the Computer Exchange in London (near Notting Hill gate station) has SHIT LOADS of boxed Amiga games. You people should check it out. Nothing took my fancy and I didn't have an SPS wanted list with me to check, but there are shitloads of them for a tenner or less. Also some speccy games.
No more hardware though ;(