Don't worry. At this rate you'll have an iPad back again before I do!
I've got two cheap cases (£5 neoprene + £3 silicon sleeve) and a ManBag (Case Logic XNTM-1 SM) coming that will probably arrive before I have an iPad to put in them!
The apple case is thin and would not really give any protection if you were to drop it. There are hundreds of neoprene types and I have also seen a Belkin one. I got the Apple one as it fits like a glove (and has an Apple on the front). It does have a slot on the back and the case turns into a slight angle in landscape.
Still trying to get the USB camera add on. Out of stock everywhere.