After some random side-quest, I found the Flameblade. Best weapon I'd seen by far and looks super cool. Not wanting to break it, I've avoided using it in hopes that I would eventually find someone that can repair damaged weapons. My hopes of finding someone like that are rapidly diminishing.
So, is there a way to keep my Flameblade (and other fancy weapons like it) from breaking? If not, can I go back to the place I found it and get another one? If so, when would it respawn?