Just an FYI... I'm waiting before I upgrade my cart until I see in the forums here that a couple of things are fixed.

1) State/Province drop-down for Canada

2) Member Pricing by Role working, overriding Price Class pricing

.... these (especially #2) are very important to me and my customers. I am getting more and more customers who fall under Member pricing, and even though the member pricing by role SHOWS on the product listing page, the non-member pricing role is what goes into the cart when they add an item. I discussed this with Dave, but I haven't heard anything on it yet.