  Let $\ell$ be a length function on a group G, and let $M_{\ell}$ denote the
operator of pointwise multiplication by $\ell$ on $\bell^2(G)$. Following
Connes, $M_{\ell}$ can be used as a ``Dirac'' operator for $C_r^*(G)$. It
defines a Lipschitz seminorm on $C_r^*(G)$, which defines a metric on the state
space of $C_r^*(G)$. We show that if G is a hyperbolic group and if $\ell$ is a
word-length function on G, then the topology from this metric coincides with
the weak-* topology (our definition of a ``compact quantum metric space''). We
show that a convenient framework is that of filtered $C^*$-algebras which
satisfy a suitable `` Haagerup-type'' condition. We also use this framework to
prove an analogous fact for certain reduced free products of $C^*$-algebras.
