Thanks for the feedback. I think I'll go ahead and order a clear case from ebay.
I totally agree with you about how great these hard shells are in terms of maintaining the iPad 2's thinness. I also have a smart cover-compatible TPU case and have a hard time deciding which I like more. The hard shell is very thin but has a glossy, smooth feel. The TPU case has a fantastic, grippy texture (much like the smart cover, only even better); however, it does slightly take away from the iPad's thinness. Granted, the iPad 2 still feels very thin even with the TPU case on, so it may just be a matter of perception since the hard shell feels more like the uncovered aluminum back than does the TPU case.