I use a scroll saw mostly, and I'm in 100% agreement with STR. A decent bandsaw would be much better. I mostly make hidden tangs, so I don't need one that often, but I'd sure invest in one if I were going to make more full tangs or folders. My scroll saw is an old Craftsman, and its pretty slow going on all but the thinnest of materials, not to mention the having to hold the piece down constantly.
Todd