I have two cases (technically three). First I have a MacAlly Flexitpad clear guard skin (non-slip Tpu material, not that icky neoprene or rubber crap), which is pretty much like the clear Belkin GripVue except that THIS one's dock, switch, mic/phones holes, etc. are all bigger and easier to work with. Gives me grip and protects the iPad. I tried them both and found this one to be the better of the two.
My two cases:
1) a Targus Hughes Leather Portfolio, which has excellent ratings, looks very nice, is well constructed and fits the iPad beautifully (even with the above-mentioned skin/case). Nothing extra or fancy about it. There isn't a pocket or pouch on it but there is a nice little business card holder. Very professional-looking and certainly looks like your typical paper notepad folio, so less conspicuous. Bought it at Best Buy for $59.99 back in June (pretty much the going rate everywhere) but NOW I see it for $29.99. If you want a nice, professional looking case, this is IT.
2) A Belkin netbook case. Got it at Fry's for $5.99 on sale and one of the last left. Black vinyl construction, firm padding on each side, one zipper, soft nylon interior, neoprene pouch on one side with a purple interior. No handle. Just your typical netbook case, but a smaller one, which fits the iPad perfectly. Got a rebate on it too, so it was free in the end. Point is: if you want a basic case and don't want to fork out a lot of case, check out some of the smaller netbook cases! This case is the one I use all the time when I'm not going to meetings, etc. with the leather case.