I've used the Topeak Explorer for several years now and it does everything I need. I don't use any of their "Quick Track" bags, and have been able to use a rack trunk with a pannier without much trouble (both use the same rail of the rack for mounting), although I'd rather have a rack with a separate rail for the panniers.
BTW, there's a longtime member here named jsharr, he'll buy you ice cream if you vote the right way too. What do you have to offer?