I think I've pretty much narrowed it down to two choices, both from Bulldog. The soft bag is the Bulldog Extreme Tactical, it's got a lot of padding and the four mag pockets plus accessory pocket, like most of these designs. Runs about 30 bucks.
Choice 2 is the Bulldog Tactical, which is a zippered "hard" bag, not really a full hard case, but it's got die cut foam to fit the rifle. I can see myself fumbling to get the rifle out and equipped in a limited time situation like defense or competition, though. Runs around 60 bucks.
Just because of price, I'm leaning towards the first case, and it will just flip open where you can grab the rifle, without having to pry it out of the foam. The second case would be nice for storage with a second rifle, though. They make 'em for AR rifles, also.