I have a pair of shorter Doc boots in purple that I got in the 90s - they definitely took a while to break in but they became very comfy. They work with orthotics and fit well, so that's a huge plus. I think the length will work for me - I'm just under 5'6", but I have proportionally long legs, and I really want tall boots. Fingers crossed.
MPJ, I haven't seen the 20-eyelet silvery/gray a lot of places, but they do seem to be available:
http://www.shoebuy.com/dr-mart.....one-_-none
It sounds like the consensus is leaning towards the silver or the red, which is what I'm thinking as well. I'm leaning slightly toward the silver because I don't own any metallic shoes. Hmmm.
One other question for Angie (or others) - do these boots work well for skinny calves out of the box, or did you have to get them altered? Zappos says they have a 14" opening, but maybe with the laces you can tighten them down....