Got my Spigen Touch Armour case as recommended on here.
Its quite chunky, as expected, but I prefer the feel of the phone with it on and it definitely helps with accidental edge presses which was one of my main bugbears with the S7 Edge... and it definitely feels like it would survive some serious abuse. It looks good now but it'll be interesting to see how it looks in a few months.
Incidentally, my other half got the standard S7 yesterday and I have to admit I'd be much more tempted to go for that over the Edge if I were buying for myself now, as it feels much nicer in the hand and easier to handle, and the difference in screen size is not really worth worrying about IMO.