Yep, sounds like the clutch. Have you noticed it slipping lately? Unless you tear it up, they usually don't feel fine one day and then all of a sudden break. The surface friction wears out over time, so as the surface wears down, the take-up is slower and at a different point on your pedal. Also, I do not recomend just replacing the disc. When the rest of the assembly goes, you will have to pay the labor all over again to tear it appart and replace it (unless you do it yourself. Still don't recomend it, though)