Thanks for the responses, guys. Speedplays weren't for me... kept getting hotspots when I tried a friend's. I really like the platform of the Shimano pedals. I'm going to go with either the 105s or the regular Ultegras, depending on what kind of deals I can find out there. If it's only 40-50 dollars more, it may be worth the difference, but honestly, I think the 105s will be fine (esp. as the rest of my bike is all 105).