I do have a pair of Sidis. The problem is that they're designed to have the pants tucked into them.
What I was thinking about doing was getting some more kevlar/leather reinforced denim jeans to wear, and a pair of the above mentioned boots. Then, there's no clothes changing, no jeans tucked into boots, etc.
I'm trying to get away from wearing my mesh jacket & regular jeans for commuting and get myself some more protection.
For boots, right now I'm wearing a pair of Danner work boots. They're better than nothing. I want better: