I have looked around myself a bit, but I have bags/cases that I am using for now. The one thing I'd recommend is to forget about trying to fit the hood in a case designed for a single lens and get one that fits the lens itself snugly. As for the cases themselves... it just depends on if you want a snug fit with a gap at the top, or a less snug fit with no gap at the top. I'd probably go snug with a gap, cause then you can put filters and stuff above it or just put some padding in the bottom if you don't like the gap.