Wonderfully inspiring post. I'm good at creating characters with conflicting motivations, etc., etc., but where I fail is connecting mental plot with physical action.
Also, I have a hard time doing both - if I write a story that relies a lot on external things (the big epic war plot I've been sort of poking at, for example), the characters' inner lives sort of get lost in the roar of external plottiness. However, if I have a story where the characters are well developed and caught up in their mental conflicts, I tend to have a lack of external plot.
This post will certainly help me in beginning to sort these things out. :) Thanks.