I currently have this for my iPad 2:
Targus - A7 Sleeve and Screen Protector for Apple® iPad - Blue - BUS023301
It's basically an iPad sleeve... And it also comes with one screen protector. I liked it because of the price since it was on sale. One thing that was kind of a bummer is that the screen protector was probably made for the first generation iPad because there was no cut out hole at the top for the front facing camera. I am planning on getting a new screen protector in the future but in the mean time I cut out a hole in the screen protector for the camera. I didn't want to at first but decided to when I noticed that the screen protector made the camera lens blurry.
Anyway, that's all I'm using to protect my iPad 2 right now. Earlier I was contemplating on getting the apple smart cover but now I'm not so sure. I'm not fond of the price. I want something to protect the back and I found this link from this website in another thread. It's a hard shell cover for the back designed for the iPad 2 and it's compatible with the apple smart case. I want to get it but I would prefer to read reviews or find a video on YouTube about first but I couldn't find one... Do any of you guys have this?
Here is the link: SmartFit2 Clear for iPad 2 - iPad / iPhone Protection - Products