Mine are on the floor, with wedges. Sound lovely. Just listening to some Mingus, then Kraftwerk next.
I bought mine from Holland, but they turned out to be a bit of a project. New crossovers came from America, new mid-drivers from Germany. Worth it though. I'd love to be able to afford a pair of III's. They're about £1000 last time I looked. If you keep searching on ebay, hififorsale etc, you'll find a pair. I'd also look out for Cornwalls, they're supposed to be even more fun!