I have ordered a BestSkinsEver, after having a good experience with their skins for my MacBook Pro and iPhone 4.
inexpensive too.
Oh, by the way... I initially had a £5.99 "smart cover" off eBay, but once I handled a genuine Apple Smart Cover in the Apple Store, I purchased one. It is MUCH better and while maybe not worth £35, I feel happier having the real deal attached to my new pride and joy. The magnets are stronger, the felt is fluffier, the plastic feels more robust and the metal is aluminium rather than painted ???