I like the Apple wireless keyboard with their dock and the incase Travel Kit Plus to carry it all. The travel kit comes with a stand that will hold the iPad in either portrait or landscape mode but I find I like the Apple stand better.
The case allows me to carry the iPad, stand, keyboard, mifi hotspot, earbuds, charger and cables. It's about the size of a netbook case and a little on thick side with everything in it but it makes it very easy to carry the iPad, and everything else on the go between home, office and traveling.
Been using it for two months now and have been very happy with it.