Ryan - I forgot to mention that.
I first purchased 1x cha0s Jams - Recursion Emerge (Purchase Type: CD), 1x Code Transmogrifier and 1x Uberfriend. I thought maybe it had to do with some specific product, so I just left 1x cha0s Jams - Recursion Emerge (Purchase Type: CD).
Anyway, both cart contents displayed the same shipping alert and I got no shipping quote.

A couple of minutes ago, I did some testing again. This time I wanted 1x Nunchucks. The shipping quote through UPS displayed correctly and I got no shipping method error the first time. However, when I was about to review my order I got an error since I forgot to select my state. After I corrected that piece of information, I was no longer able to get a shipping quote nor could I select any shipping method and thus once more I wasn't able to checkout.

Thanks for your help =)