Instead of just "combat" boots, Google or otherwise search for "patrol" or "tactical" boots. That's what I ended up with, since I wanted side zippers. With a bit of searching (Zappos, etc), you should be able to find something that will work in your size at a substantial discount. I would try my favs:

Ebay
Amazon
Zappos
Botach Tactical

That's all I can remember off the top of my head. Good luck, and I love my black boots with my kilt, or (dare I say) jeans, dickies, whatever. They look and feel good every day!