Dakine high/lo roller. Plenty of room for everything, you'll need to remove bindings from one board though.
X2. I have the Lo Roller and it's pretty sweet. Mine is the 157 I think, and I easily have room for all of my gear in it. I carried a 157 without bindings, 154 with bindings, my pants/jacket/base layers underneath the boards, and helmet/goggles all in the main part. You could also probably put one set of bindings on a pair of boots and put them in the boot compartments. I put my gloves inside my boots, along with my lock/tool/spare parts, etc. It would be a tight squeeze to get another set of boots in there, but if you don't have helmets or don't want to pack them in the bag, you might be able to put them in between the bindings of the top board.
I have used both the burton wheelie gig bag and the burton wheelie locker bag, would recommend either to carry 2 boards boots and bindings. locker bag has more room, can carry a third board for example and/or more gear