I just purchased one of these on Ebay. It's a 1000VA, medical grade, 9 outlet, 120/240 V for about $85USD + $25USD shipping. These things list for $560 new so it seemed worth a shot!
Nice aluminum enclosure, fairly small (approx 4 in tall, 8 in wide, 12 in long) and weighs in at 22.6 lbs (apologies in advance to my European brethren for the archaic measurement units). Held together with Torx screws and I didn't have an exact match so the actual screws are probably 1 size greater than these: Sides 8 x T15 and top 1 x T27.
Good thing I used the meter on it first to test that all the outlets were working: The unit was set to 240V output!
Attached are a few pictures for your entertainment. If you are looking for one, the guy has 5 left, just search EBay.