Well, it's really nice to have both of course, but I've seen more than a few pictures weak on the technical side that were still powerful images. Even that Leica saint Bresson produced a lot of stuff of lesser technical quality. But we see his photographs (and those of others) through the goggles of history and their fame and our nostalgia. I wish my photographs were good enough that they could be crap at the same time...
The technical quality is the easy part. Buy a good camera, read and follow the instructions.
Once you've become comfortable with the gear, you are free to work on your vision. It really is that simple.