I've been looking for a hard/stiff case for protecting my T1 whilst in my rucksack. I've bought the
igadgitz eva hard case for the Kindle Touch - fits great and its only £9 from Amazon UK (also some on ebay just search eva case kindle touch)
Pics below - sizing is near perfect - couple of millimetres each spare each side (means you can fit stylus in though) but tight top and bottom.