I just wanted to put my hand up and say I'm also part of the 3-4 weeks group, shipping to Grayslake, IL, and this wait is killing me! Especially since this will be my first ever Mac, so the excitement is palpable.
In the meantime, I went ahead and ordered a case for the beast from Hard Graft for 65GBP, specifically this:
http://www.hardgraft.com/products/xii-macbook-heritage
Its a beautiful, classy case, and I would highly recommend this or the 15in Folio case made by them for around 120GBP. Sure, its quite expensive for a case, but a classy MacBook Pro deserves a classy case.
Cheers, and hoping to join the club soon.