I only have a hard case, a Dosko Pro 44, but will probably get a soft case later. I sometimes put it in the back of my truck so went with the hard case first. I have never tried to put the bow in with the quiver attached but I think you could. It has an area you can attach a bracket to and attach your quiver. I use a Kwickee so I bought an extra bracket so I can just take it off my bow and attach it in the case. Plus it comes with a box for sundry items and will also hold a dozen arrows. I bought mine at the pro shop for about $50. Here is a link.
http://doskosport.com/Catalog.plx?ID=50