So you purchased an Apple iPad 2 recently and now you begin to wonder what next in terms of accessories?
In my opinion it all starts with a screen protector. Yes, the display is mind blowing but it is the biggest asset that iPad users are dependent on, on a daily basis. So protect it from scratches.
Secondly, consider getting a keyboard. If you type emails on a regular basis (we all do) then a keyboard will make your life a lot easier. I think Zagg has a very good concept that doubles as a case as well. Consider also getting an additional Apple plug and cable set to be able to charge your iPad 2 at your work and never have to worry about forgetting the cable again.
It is a little investment into your pride and joy but will make the experience that much better.