The new site looks great! Glad UC 2.x was good to go for ya.
I was trying to avoid an upgrade from drupal 5.xx and uc 1.xx at a later date so just bit the bullet.
I really need Taxonomy support in the CA module which I hope you'll consider adding in a future version. The products are split into different categories defined in Taxonomy under the single class product, Vocabulary Store, so when using the Flat rate module with multiple entries they all show at the checkout. I want to hide certain shipping options using the CA based on what category(s) products are in.