Oakleaf--I'm not brave enough to try barefoot running yet. But glad you are liking it! I've started reading ChiRunning and am working on my form. I am enjoying it so far.

I did a :

1 mile warm-up
3 x 1600 @ 9:30m/mile
w/ 800m @ 10:30m/miles between
1 mile cool-down

I did it! Yay! I've never really done consistant speed work. This is new to me. I'm always so proud of myself when I can cross a work out off my calendar