I have used the Jandd Expedition rack and I decided it was overkill for my bike. My DH uses them on his bikes though. I put a Delta Sherpa rack on my touring bike. It has worked well for my last 2 tours. My panniers were 10-15 lbs. each. My Jandd panniers worked great on the rack. I also have a Delta rack on my commuter bike and it has hauled a lot of groceries in my panniers.

We both have Blackburn lowrider racks and they work great for us with Jandd Mini Mtn Panniers.

I'm not sure of the price of the Delta racks: one came on a Novara Safari I used to own, and the other was $1.93 at an REI garage sale!