i bought mine in the apple store and they open and activate it right there. i would recommend that because you get a chance to check it for cracks, yellow display, scratches and whatever could be wrong with a brand new gadget.
i ordered a xskn.com silicone case and for the meantime i bought for 7.99 dollar a cheap case from Marshalls (they have often incase hardshells, griffin cases and other stuff for iphones/ipods for cheap). this particular case is recycled from old water bottles.🙂
the oil repellent screen doesn't work for me at all. it collects fingerprints as much as my 2G iphone. i'm going to get a screen protector soon.