Well, I just ordered the Poprap Disc, and it should be ready to ride sometime next week.

I had decided to take both bikes for one more test ride before making any decisions. The Surly rode and performed great, as expected, but when I rode the Poprad I felt like I never wanted to stop riding -- such a wonderful feel. I ended up on a 10 mile trek without realizing it. Like what rbiked writes: that feeling convinced me to go with the Poprad.