iHome may have found the perfect solution for you, combining an iPad 2 case with a set of built in stereo speakers, or to be more specific, flat NXT stereo speakers. The casing is made out of faux leather material and it can also be folded into multiple positions, six to be exact, sort of what the smart casing that Apple sells for the iPad 2 does. It can either be folded to a typing-friendly position or in a more upright position for viewing movies on the iPad.
The iHome iDM71 case works with both the iPad and iPad 2 and it will set you back $99.99, which does seem like a pretty good deal considering you get a case and a set of stereo speakers at all-in-one.